# Private AI Tools

> Free image, video, audio, PDF, developer and everyday tools. Everything runs in your browser: no sign-up, no upload, no watermark.

Private AI Tools is a collection of 144 free online tools that run entirely in the user's web browser. No sign-up, no file upload, no watermark: files never leave the device. Every tool is free and works on any modern browser.

## For AI agents

How an AI assistant uses this site: (1) connect the MCP server `https://private-ai-tools.com/mcp` (remote, Streamable HTTP, no sign-in: any MCP client, or a custom connector in Claude or ChatGPT) and call `find_tools` with the user's request in their language, or pick the tool from the lists below; (2) give the user the page link; (3) never ask for their files: the tools run in their browser, and the MCP server returns only names and links, never receiving files.

- [Guide for AI agents](https://private-ai-tools.com/agents.md): how to help users with these tools, the MCP server and every agent tool with its parameters (Markdown).
- [Use with AI assistants](https://private-ai-tools.com/ai-assistants): how users connect Claude, ChatGPT and other assistants, and instructions they can paste into them.
- MCP server for AI assistants: `https://private-ai-tools.com/mcp` (remote, Streamable HTTP, no sign-in). Add it as a custom connector. Tools: `find_tools` (search by task), `list_tools` (by category), `get_tool` (details and links in 5 languages). It returns names and links only: the work happens in the user's browser and files are never sent.
- WebMCP in the pages: every page registers `find_tools` and `open_tool` with `document.modelContext`, and 41 tool pages also register their own tools (listed below). They exist only while the page is open, in a browser with WebMCP (Chrome: the "WebMCP for testing" flag). A browser agent without it can provide the API after the page has loaded and ask the page to register: `const tools = new Map(); Object.defineProperty(document, "modelContext", { configurable: true, value: { registerTool(t) { tools.set(t.name, t); return { unregister: () => tools.delete(t.name) }; } } }); window.dispatchEvent(new Event("modelcontextchange"));` then `await tools.get("format_json").execute({ json: '{"b":1,"a":2}', sortKeys: true })`. Tools that work on files act on the files the user dropped into the page.
- Tool index (JSON, one file per language): https://private-ai-tools.com/agent/tools.en.json, https://private-ai-tools.com/agent/tools.it.json, https://private-ai-tools.com/agent/tools.es.json, https://private-ai-tools.com/agent/tools.fr.json, https://private-ai-tools.com/agent/tools.de.json.

Pages with agent tools:

- [Image Converter](https://private-ai-tools.com/image-converter): `convert_images`, `download_converted_images`
- [EXIF Remover](https://private-ai-tools.com/exif-remover): `remove_image_metadata`, `download_clean_images`
- [Image Compressor](https://private-ai-tools.com/image-compressor): `compress_images`, `download_images`
- [Image Resizer](https://private-ai-tools.com/image-resizer): `resize_images`, `download_resized_images`
- [Background Remover](https://private-ai-tools.com/background-remover): `remove_backgrounds`, `download_background_removed`
- [Watermark Maker](https://private-ai-tools.com/watermark-maker): `watermark_images`, `download_watermarked_images`
- [Video Converter](https://private-ai-tools.com/video-converter): `list_videos`, `convert_videos`, `download_videos`
- [Audio Converter](https://private-ai-tools.com/audio-converter): `convert_audio`, `download_audio`
- [Merge PDF](https://private-ai-tools.com/merge-pdf): `list_pdfs`, `merge_pdfs`
- [Compress PDF](https://private-ai-tools.com/compress-pdf): `compress_pdf`, `download_compressed_pdf`
- [PDF to JPG](https://private-ai-tools.com/pdf-to-jpg): `get_pdf_info`, `convert_pdf_to_images`, `download_pdf_images`
- [Image to PDF](https://private-ai-tools.com/image-to-pdf): `list_images`, `images_to_pdf`
- [Split PDF](https://private-ai-tools.com/split-pdf): `get_pdf_info`, `split_pdf`
- [Rotate PDF](https://private-ai-tools.com/rotate-pdf): `get_pdf_info`, `edit_pdf_pages`
- [OCR](https://private-ai-tools.com/ocr): `list_ocr_files`, `recognize_text`, `export_ocr_result`
- [Word Counter](https://private-ai-tools.com/word-counter): `analyze_text`, `change_text_case`
- [Markdown Editor](https://private-ai-tools.com/markdown-editor): `markdown_to_html`
- [JSON Formatter](https://private-ai-tools.com/json-formatter): `format_json`
- [Data Format Converter](https://private-ai-tools.com/data-format-converter): `convert_data_format`
- [Base64 Encoder & Decoder](https://private-ai-tools.com/base64-encoder-decoder): `base64_encode`, `base64_decode`
- [URL Encoder & Decoder](https://private-ai-tools.com/url-encoder-decoder): `url_encode`, `url_decode`
- [Hash Generator](https://private-ai-tools.com/hash-generator): `hash_text`
- [UUID Generator](https://private-ai-tools.com/uuid-generator): `generate_ids`
- [Regex Tester](https://private-ai-tools.com/regex-tester): `test_regex`
- [SQL Formatter](https://private-ai-tools.com/sql-formatter): `format_sql`
- [JWT Decoder](https://private-ai-tools.com/jwt-decoder): `decode_jwt`
- [Unix Timestamp Converter](https://private-ai-tools.com/unix-timestamp-converter): `convert_timestamp`
- [Loan Calculator](https://private-ai-tools.com/loan-calculator): `calculate_loan`
- [Percentage Calculator](https://private-ai-tools.com/percentage-calculator): `calculate_percentage`
- [Age Calculator](https://private-ai-tools.com/age-calculator): `calculate_age`, `days_between_dates`, `add_to_date`
- [BMI Calculator](https://private-ai-tools.com/bmi-calculator): `calculate_bmi`
- [Scientific Calculator](https://private-ai-tools.com/scientific-calculator): `evaluate_expression`
- [GPA Calculator](https://private-ai-tools.com/gpa-calculator): `calculate_gpa`
- [Spin the Wheel](https://private-ai-tools.com/spin-the-wheel): `spin_wheel`
- [Random Number Generator](https://private-ai-tools.com/random-number-generator): `random_numbers`, `pick_from_list`
- [World Clock](https://private-ai-tools.com/world-clock): `convert_time_zone`
- [Coin Flip](https://private-ai-tools.com/coin-flip): `flip_coins`
- [Dice Roller](https://private-ai-tools.com/dice-roller): `roll_dice`
- [QR Code Generator](https://private-ai-tools.com/qr-code-generator): `generate_qr_code`
- [Barcode Generator](https://private-ai-tools.com/barcode-generator): `generate_barcode`
- [Font Generator](https://private-ai-tools.com/font-generator): `fancy_text`

## Image & design

- [Image Vectorizer](https://private-ai-tools.com/image-vectorizer): Turn PNG, JPG and WebP images into editable SVG vector graphics.
- [Image Converter](https://private-ai-tools.com/image-converter): Convert images between JPG, PNG, WebP, GIF and BMP, one file or a whole batch.
- [Photo Editor](https://private-ai-tools.com/photo-editor): Adjust, retouch, crop and add text to photos with looks and layers.
- [Image Cropper](https://private-ai-tools.com/image-cropper): Crop pictures with a draggable frame, preset aspect ratios or a circle.
- [EXIF Remover](https://private-ai-tools.com/exif-remover): View and strip EXIF metadata and GPS location from photos without re-encoding.
- [Image Compressor](https://private-ai-tools.com/image-compressor): Shrink JPG, PNG and WebP files in batches with a quality slider.
- [Image Resizer](https://private-ai-tools.com/image-resizer): Resize images by pixels, percentage or social media preset, in batches.
- [Image Upscaler](https://private-ai-tools.com/image-upscaler): Enlarge photos and drawings 2×, 3× or 4× with AI upscaling, right in your browser.
- [Image Eraser](https://private-ai-tools.com/image-eraser): Paint over objects, people or text and let AI fill the gap, at full resolution and in your browser.
- [Segment Anything](https://private-ai-tools.com/segment-anything): Click any object to select it and cut it out as a transparent PNG.
- [Background Remover](https://private-ai-tools.com/background-remover): Remove photo backgrounds with AI and download a transparent PNG.
- [Image Colorizer](https://private-ai-tools.com/image-colorizer): Add color to black-and-white photos with AI, at full resolution, right in your browser.
- [AI Face Enhancer](https://private-ai-tools.com/face-enhancer): Restore blurry, old or low-resolution faces in photos with AI, right in your browser.
- [Face Swap](https://private-ai-tools.com/face-swap): Swap faces between two photos or within a group photo, with seamless blending and color matching, in your browser.
- [AI Image Detector](https://private-ai-tools.com/ai-image-detector): Check images for AI generation: Content Credentials, AI metadata and prompts, forensic hints and an optional AI classifier.
- [Photo Collage Maker](https://private-ai-tools.com/photo-collage-maker): Build grid, mosaic, freeform and heart photo collages with text, sized for social media or print.
- [Logo Maker](https://private-ai-tools.com/logo-maker): Make a simple logo from a name, an icon and a font; export SVG, PNG and favicons.
- [Passport Photo Maker](https://private-ai-tools.com/passport-photo-maker): Crop a photo to official passport or visa sizes with a white background.
- [Mockup Generator](https://private-ai-tools.com/mockup-generator): Put your design on 3D phones, laptops, posters, business cards, books, boxes, mugs and billboards, then export PNG, JPG or WebP up to 4K.
- [Watermark Maker](https://private-ai-tools.com/watermark-maker): Add a text or logo watermark to many photos at once, at full resolution.
- [App Store Screenshot Generator](https://private-ai-tools.com/app-store-screenshot-generator): Device frames, headlines and backgrounds for App Store and Google Play screenshots.

## Video

- [Video Compressor](https://private-ai-tools.com/video-compressor): Compress video to a target size, trim, crop, change speed or strip the audio.
- [Video Editor](https://private-ai-tools.com/video-editor): Edit on a multi-track timeline with titles, transitions, subtitles and music.
- [Video Converter](https://private-ai-tools.com/video-converter): Convert videos to MP4, WebM, MOV or MKV and change the resolution.
- [LUT Generator](https://private-ai-tools.com/lut-generator): Create, preview and convert color-grading LUTs in .cube and HALD formats.
- [Video Upscaler](https://private-ai-tools.com/video-upscaler): Upscale short videos 2× or 4× with AI, up to 4K, and keep the sound, right in your browser.
- [Video FPS Increaser](https://private-ai-tools.com/video-fps-increaser): Make videos smoother at 60 or 120 fps, or turn them into slow motion, with AI frame interpolation in your browser.
- [Video Merger](https://private-ai-tools.com/video-merger): Join video or audio files into one, in the order you choose.
- [Video to GIF](https://private-ai-tools.com/video-to-gif): Turn MP4, MOV and WebM clips into looping GIFs.
- [GIF Maker](https://private-ai-tools.com/gif-maker): Turn images into an animated GIF or MP4 with speed, loop, crossfades and text.
- [Subtitle Generator](https://private-ai-tools.com/subtitle-generator): Generate captions from speech in about 100 languages and export SRT, VTT or burned-in MP4.
- [Subtitle Editor](https://private-ai-tools.com/subtitle-editor): Edit, time, sync and convert SRT, VTT and ASS subtitles on a waveform.
- [Screen Recorder](https://private-ai-tools.com/screen-recorder): Record your screen, a window or a tab with webcam and microphone.
- [Green Screen Video Editor](https://private-ai-tools.com/green-screen-video): Remove a green screen from video or photos and add a new background.
- [Teleprompter](https://private-ai-tools.com/teleprompter): Read a script at a steady pace with mirror mode and webcam recording.

## Audio & music

- [Audio Converter](https://private-ai-tools.com/audio-converter): Convert audio to MP3, M4A, WAV, FLAC or OGG and trim it.
- [Audio Trimmer](https://private-ai-tools.com/audio-trimmer): Cut audio files on a waveform, add fades and save as MP3 or WAV.
- [Music Maker](https://private-ai-tools.com/music-maker): Make beats and songs with a drum machine, piano roll, synths and mixer.
- [Sheet Music Maker](https://private-ai-tools.com/sheet-music-maker): Write scores with lyrics and chords, play them back and export PDF, MusicXML or MIDI.
- [Online Piano](https://private-ai-tools.com/online-piano): Play an 88-key piano with keyboard, mouse, touch or MIDI and record it.
- [Online Guitar](https://private-ai-tools.com/online-guitar): Strum and pick a virtual guitar with chord shapes, tunings and capo.
- [Online Tuner](https://private-ai-tools.com/online-tuner): Tune guitar, bass, ukulele, violin or any instrument with your microphone.
- [Metronome](https://private-ai-tools.com/metronome): Precise metronome with tap tempo, accents, subdivisions and a tempo trainer.
- [White Noise Generator](https://private-ai-tools.com/white-noise): White, pink and brown noise plus nature sounds, with a mixer and sleep timer.
- [Audio Noise Remover](https://private-ai-tools.com/noise-remover): Remove background noise from voice recordings and videos with AI.
- [Loudness Meter](https://private-ai-tools.com/loudness-meter): Measure LUFS, true peak and loudness range (EBU R128) and normalize audio.
- [Speech to Text](https://private-ai-tools.com/speech-to-text): Transcribe audio and video in about 100 languages and export TXT, Word, SRT or JSON.
- [Vocal Remover](https://private-ai-tools.com/vocal-remover): Remove the vocals from a song or split it into vocals, drums, bass and other instruments with AI, in your browser.
- [AI Music Detector](https://private-ai-tools.com/ai-music-detector): Check songs for AI generation: Content Credentials, AI tags of Suno, Udio and other services, and sound analysis.
- [Text to Speech](https://private-ai-tools.com/text-to-speech): Listen to any text read by natural AI voices and download MP3 or WAV.
- [Voice Recorder](https://private-ai-tools.com/voice-recorder): Record your voice with a live level meter and save MP3, WAV or WebM.

## PDF

- [PDF Editor](https://private-ai-tools.com/pdf-editor): Edit text, add images, shapes and signatures, fill forms, redact and rearrange pages.
- [Document Compare](https://private-ai-tools.com/document-compare): Compare two PDF, Word or text files word by word with a redline view.
- [PDF to Word](https://private-ai-tools.com/pdf-to-word): Convert PDFs into editable Word documents with real paragraphs, headings, lists, tables and pictures.
- [Word to PDF](https://private-ai-tools.com/word-to-pdf): Convert .docx files to PDF with selectable text, tables and images.
- [Merge PDF](https://private-ai-tools.com/merge-pdf): Combine several PDFs into one file in the order you choose.
- [Compress PDF](https://private-ai-tools.com/compress-pdf): Make PDFs smaller by recompressing the pictures inside.
- [PDF to JPG](https://private-ai-tools.com/pdf-to-jpg): Turn PDF pages into JPG, PNG or WebP images at the resolution you need.
- [Image to PDF](https://private-ai-tools.com/image-to-pdf): Combine JPG, PNG and other images into a single PDF.
- [Split PDF](https://private-ai-tools.com/split-pdf): Split a PDF by page ranges, into single pages or every N pages.
- [Rotate PDF](https://private-ai-tools.com/rotate-pdf): Rotate, delete and reorder PDF pages.
- [OCR](https://private-ai-tools.com/ocr): Extract editable text from photos and scanned PDFs.
- [PDF to Excel](https://private-ai-tools.com/pdf-to-excel): Extract tables from PDFs to Excel or CSV with real numbers, dates and merged cells.
- [Sign PDF](https://private-ai-tools.com/sign-pdf): Draw, type or upload a signature and place it on any PDF page.
- [PDF Redactor](https://private-ai-tools.com/redact-pdf): Permanently black out text, images and hidden data in PDFs.
- [PDF Preflight](https://private-ai-tools.com/pdf-preflight): Check fonts, image resolution, color and bleed before printing.
- [Bates Numbering](https://private-ai-tools.com/bates-numbering): Stamp sequential Bates numbers across many PDF files.
- [HTML to PDF](https://private-ai-tools.com/html-to-pdf): Turn HTML into a PDF with real text and print styles.
- [Text to PDF](https://private-ai-tools.com/text-to-pdf): Turn plain text, logs or code into a clean PDF with selectable text.
- [CSV to PDF](https://private-ai-tools.com/csv-to-pdf): Turn CSV and TSV files into a PDF table with the header on every page.
- [Excel to PDF](https://private-ai-tools.com/excel-to-pdf): Convert Excel, ODS and CSV spreadsheets to PDF with columns fitted to the page.
- [PDF to PowerPoint](https://private-ai-tools.com/pdf-to-powerpoint): Turn each PDF page into a slide with editable text boxes, movable pictures and the page's graphics.
- [Unlock PDF](https://private-ai-tools.com/unlock-pdf): Remove a known PDF password and printing or copying restrictions.
- [PDF Reader](https://private-ai-tools.com/pdf-reader): Read PDFs with thumbnails, outline, search and dark mode.
- [PDF Imposition](https://private-ai-tools.com/pdf-imposition): Make booklets, n-up sheets and step-and-repeat layouts with printer's marks.

## Business & writing

- [Bank Statement Converter](https://private-ai-tools.com/bank-statement-converter): Convert PDF bank statements to Excel, CSV, OFX, QBO or QIF, with running-balance checks.
- [Invoice Generator](https://private-ai-tools.com/invoice-generator): Create invoices, quotes and receipts with exact tax math and PDF export.
- [Invoice Scanner](https://private-ai-tools.com/invoice-scanner): Extract vendor, VAT number, dates, totals and line items from invoices and receipts to Excel, CSV or JSON.
- [Resume Builder](https://private-ai-tools.com/resume-builder): Build a resume and cover letter with ATS-friendly templates.
- [Document Translator](https://private-ai-tools.com/document-translator): Translate Word, PowerPoint, Excel, PDF, HTML, Markdown and subtitle files in your browser while keeping their layout.
- [Word Counter](https://private-ai-tools.com/word-counter): Count words, characters, sentences and paragraphs with reading time and keywords.
- [Markdown Editor](https://private-ai-tools.com/markdown-editor): Write Markdown with live preview, tables, math and diagrams; export PDF, Word or HTML.
- [Grammar Checker](https://private-ai-tools.com/grammar-checker): Check English spelling, grammar and style and fix mistakes in one click.

## Developer tools

- [Password Generator](https://private-ai-tools.com/password-generator): Create strong random passwords and passphrases in your browser.
- [JSON Formatter](https://private-ai-tools.com/json-formatter): Validate, beautify and minify JSON with exact error positions and a tree view.
- [Data Format Converter](https://private-ai-tools.com/data-format-converter): Convert JSON, YAML, TOML, XML, CSV, INI and .env, and generate types.
- [Base64 Encoder & Decoder](https://private-ai-tools.com/base64-encoder-decoder): Encode text and files to Base64 or data URIs and decode them back.
- [URL Encoder & Decoder](https://private-ai-tools.com/url-encoder-decoder): Percent-encode or decode URLs and edit query parameters in a table.
- [Hash Generator](https://private-ai-tools.com/hash-generator): MD5, SHA-256, SHA-3, BLAKE3, CRC32 and more for text and files, with HMAC.
- [UUID Generator](https://private-ai-tools.com/uuid-generator): Generate UUID v4, v7 and v1, ULIDs and Nano IDs in bulk.
- [Regex Tester](https://private-ai-tools.com/regex-tester): Test JavaScript regular expressions with live highlighting and a plain-English explanation.
- [SQL Formatter](https://private-ai-tools.com/sql-formatter): Format or minify SQL for many dialects.
- [JWT Decoder](https://private-ai-tools.com/jwt-decoder): Decode JSON Web Tokens, check expiry, verify signatures and sign test tokens.
- [Unix Timestamp Converter](https://private-ai-tools.com/unix-timestamp-converter): Convert epoch time to dates in any time zone and back, plus a cron explainer.

## Data, maps & science

- [Data Explorer](https://private-ai-tools.com/data-explorer): Open big CSV, Excel, JSON, Parquet and SQLite files; filter, pivot, chart and run SQL.
- [GIS Viewer](https://private-ai-tools.com/gis-viewer): Open shapefiles, GeoJSON, KML and GPX on a map and convert between them.
- [DICOM Viewer](https://private-ai-tools.com/dicom-viewer): View DICOM images and series with window/level, measurements, MPR, a tag browser and anonymization.
- [Chemical Structure Drawer](https://private-ai-tools.com/chemical-structure-drawer): Draw molecules and get SMILES, molecular weight, logP and a 3D view.
- [Plot Digitizer](https://private-ai-tools.com/plot-digitizer): Extract data points from chart images and PDF figures.
- [Curve Fitting & Statistics](https://private-ai-tools.com/curve-fitting): Fit IC50 and custom curves, run t-tests and ANOVA, export publication graphs.

## Calculators & timers

- [Loan Calculator](https://private-ai-tools.com/loan-calculator): Monthly payment, total interest, extra payments and a full amortization schedule.
- [Percentage Calculator](https://private-ai-tools.com/percentage-calculator): Percent of a number, percentage change, increase, decrease and difference.
- [Age Calculator](https://private-ai-tools.com/age-calculator): Exact age in years, months and days, days lived and next birthday.
- [BMI Calculator](https://private-ai-tools.com/bmi-calculator): Body mass index in metric or US units with WHO categories and a healthy range.
- [Scientific Calculator](https://private-ai-tools.com/scientific-calculator): Type full expressions with trig, logs, powers, roots and factorials.
- [GPA Calculator](https://private-ai-tools.com/gpa-calculator): US 4.0 scale GPA with credits, weighted honors/AP courses and cumulative GPA.
- [Online Timer](https://private-ai-tools.com/online-timer): Countdown timers with alarm, presets and notifications.
- [Stopwatch](https://private-ai-tools.com/stopwatch): Accurate stopwatch with laps, splits, full screen and CSV export.
- [Spin the Wheel](https://private-ai-tools.com/spin-the-wheel): Fair random picker wheel with weights and shareable links.
- [Random Number Generator](https://private-ai-tools.com/random-number-generator): Unbiased random numbers in any range, with or without repeats.
- [World Clock](https://private-ai-tools.com/world-clock): Current time in cities worldwide and a meeting planner across time zones.
- [Pomodoro Timer](https://private-ai-tools.com/pomodoro-timer): Focus sessions and breaks with a task list and daily stats.
- [Coin Flip](https://private-ai-tools.com/coin-flip): Fair heads or tails with a 3D coin, tally and streaks.
- [Dice Roller](https://private-ai-tools.com/dice-roller): Roll d4 to d100 or any notation like 3d6+2 and see the odds.

## Whiteboards & diagrams

- [Online Whiteboard](https://private-ai-tools.com/online-whiteboard): Sketch diagrams, flowcharts and wireframes on an endless canvas.
- [Mind Map Maker](https://private-ai-tools.com/mind-map-maker): Brainstorm with mind maps, templates and an outline view.
- [Gantt Chart Maker](https://private-ai-tools.com/gantt-chart-maker): Plan projects with tasks, dependencies, milestones and a critical path.

## Games & learning

- [Minesweeper](https://private-ai-tools.com/minesweeper): Classic Minesweeper with no-guess boards, hints and a daily board.
- [2048](https://private-ai-tools.com/2048): Slide and merge tiles to reach 2048, with undo and several board sizes.
- [Solitaire](https://private-ai-tools.com/solitaire): Klondike solitaire with draw 1 or 3, hints, undo and winnable deals.
- [Snake](https://private-ai-tools.com/snake): Classic snake with walls, wrap-around and swipe controls.
- [Sudoku](https://private-ai-tools.com/sudoku): Sudoku with explained hints, a daily puzzle, a solver and printable PDFs.
- [Block Puzzle](https://private-ai-tools.com/block-puzzle): Rotate falling blocks and clear lines, with hold and ghost piece.
- [Typing Test](https://private-ai-tools.com/typing-test): Measure your typing speed and accuracy and track progress.
- [Chess](https://private-ai-tools.com/chess): Play chess against the computer or a friend, with clocks, hints and PGN.
- [Periodic Table](https://private-ai-tools.com/periodic-table): Interactive periodic table with trends and a quiz.

## 3D printing, CAD & electronics

- [GLB to STL Converter](https://private-ai-tools.com/glb-to-stl): Convert GLB, OBJ, FBX, STEP and other 3D models to STL, 3MF, OBJ, GLB or PLY, with units, orientation and print repair.
- [3D Model Viewer](https://private-ai-tools.com/3d-model-viewer): Open GLB, STL, OBJ, FBX, 3MF and STEP files in your browser.
- [Image to STL (Lithophane)](https://private-ai-tools.com/image-to-stl): Turn a photo into a 3D-printable lithophane or relief: flat, curved, cylinder lamp, heart or round, as STL or 3MF.
- [Image to DXF](https://private-ai-tools.com/image-to-dxf): Trace images or type text into closed DXF, SVG or PDF outlines at real size for laser cutting and CNC.
- [DXF Viewer](https://private-ai-tools.com/dxf-viewer): Open DXF drawings with layers, measuring and drawing info, and export them to SVG, PDF or PNG.
- [Gerber Viewer](https://private-ai-tools.com/gerber-viewer): Check Gerber and Excellon drill files with a realistic top and bottom PCB render, layer view, measuring and drill table.

## Crafts & laser

- [Sticker Maker](https://private-ai-tools.com/sticker-maker): Add a die-cut border around a design and export a transparent sticker PNG.
- [Perler Bead Pattern Maker](https://private-ai-tools.com/perler-bead-pattern-maker): Turn a picture into a bead, cross-stitch, diamond painting or pixel art pattern with a printable chart.
- [Photo to Laser Engraving](https://private-ai-tools.com/laser-engraving): Dither photos for laser engraving with material presets and exact DPI.

## QR codes, barcodes & fonts

- [QR Code Generator](https://private-ai-tools.com/qr-code-generator): QR codes for links, Wi-Fi and contacts with your colors and logo.
- [Barcode Generator](https://private-ai-tools.com/barcode-generator): EAN, UPC, Code 128, Data Matrix and more at real size.
- [Font Generator](https://private-ai-tools.com/font-generator): Fancy text in dozens of copy-and-paste Unicode styles.

## Device tests

- [Keyboard Test](https://private-ai-tools.com/keyboard-test): Check every key, rollover, ghosting and stuck keys.
- [Mouse Test & CPS](https://private-ai-tools.com/mouse-test): Test buttons, double clicks, click speed and polling rate.
- [Dead Pixel Test](https://private-ai-tools.com/dead-pixel-test): Full-screen colors and patterns to find dead or stuck pixels.
- [Mic Test](https://private-ai-tools.com/mic-test): Check your microphone level, spectrum and noise, and play it back.
- [Speaker Test](https://private-ai-tools.com/speaker-test): Test left/right channels, frequency sweep, bass and polarity.
- [Webcam Test](https://private-ai-tools.com/webcam-test): Preview your webcam and check resolution, frame rate and lighting.

## Guides

- [How to compress a PDF without losing quality](https://private-ai-tools.com/blog/how-to-compress-a-pdf): To compress a PDF, reduce the resolution of the pictures inside it and re-encode them, while leaving text and vector graphics untouched. With Compress PDF on Private AI Tools you pick a level (Screen 72 DPI, Ebook 150 DPI or Print 300 DPI), drop the files and download smaller copies. Everything runs in your browser, so the PDF is never uploaded.
- [How to compress images without visible quality loss](https://private-ai-tools.com/blog/how-to-compress-images): To compress an image, re-encode it at a slightly lower quality and, if it is larger than it will be shown, reduce its dimensions. For photos, JPG or WebP at 70–85% quality usually looks identical and is much smaller. Image Compressor on Private AI Tools does this for whole batches in your browser, with a before/after comparison and no upload.
- [How to convert JPG and other images to PDF](https://private-ai-tools.com/blog/how-to-convert-images-to-pdf): To convert images to PDF, add the pictures to an image-to-PDF converter, put them in order and choose a page size; each image becomes one page. Image to PDF on Private AI Tools supports JPG, PNG, WebP, GIF, BMP, AVIF and SVG, lets you rotate, set margins and lower the resolution for a smaller file, and builds the PDF in your browser.
- [How to merge PDF files for free, without uploading them](https://private-ai-tools.com/blog/how-to-merge-pdf-files): To merge PDF files, open a PDF merger, add the files, drag them into the order you want and download the combined document. With Merge PDF on Private AI Tools this happens inside your browser: nothing is uploaded, there is no sign-up, and you can take only some pages from each file by typing ranges such as 1-3, 5.
- [How to remove the background from a photo with free AI](https://private-ai-tools.com/blog/how-to-remove-background-from-photo): To remove the background from a photo, run it through an AI segmentation model that separates the subject from everything behind it, then save the result as a transparent PNG. Background Remover on Private AI Tools downloads an open-source model once and runs it in your browser, keeps the original resolution, and lets you add a color, blur or new picture behind the subject.

## Other languages

- [Italiano](https://private-ai-tools.com/it): the site in Italian; tool interfaces stay in English.
- [Español](https://private-ai-tools.com/es): the site in Spanish; tool interfaces stay in English.
- [Français](https://private-ai-tools.com/fr): the site in French; tool interfaces stay in English.
- [Deutsch](https://private-ai-tools.com/de): the site in German; tool interfaces stay in English.

## About

- [About Private AI Tools](https://private-ai-tools.com/about): what the site is and how it works.
- [Credits and open source](https://private-ai-tools.com/credits): the open-source libraries behind the tools.