!free tools
The short version
Every tool on this list runs in your browser. No account. No file uploads to a server. Open the page, drop your file, download the result. Here is when to reach for each one.
1. Background Remover — Product photos and portraits
The
Background Remover downloads a ~10 MB
U²-Net ONNX model and runs segmentation locally via
ONNX Runtime Web. Best for e-commerce cutouts, headshots, and design composites.
2. MP4 to MP3 — Extract audio from video
The
MP4 to MP3 converter uses
ffmpeg.wasm — the WebAssembly build of FFmpeg. Supports MP4, MOV, WebM, AVI, MKV. Output is 192 kbps MP3.
3. Image Compressor — Web optimization
The
Image Compressor re-encodes JPEG, PNG, and WebP via the Canvas API. Start at 80% quality — typically 60-75% file size reduction with no visible difference on photos.
4. Image Resizer — Social media and web
The
Image Resizer includes presets for Instagram, YouTube, LinkedIn, and X/Twitter. Uses Lanczos-3 resampling for sharp downscaling.
5. Format Converter — PNG, JPEG, WebP
The
Format Converter converts between PNG, JPEG, and WebP using native browser codecs. Transparent PNGs convert to WebP with alpha preserved.
6. QR Code Generator — Static codes that never expire
The
QR Code Generator creates static QR codes with qrcode.js — data is baked into the pixel grid, no redirect servers, no expiry.
7. Text Extractor (OCR) — Digitize screenshots and scans
The
Text Extractor runs
Tesseract.js v4 in a Web Worker. 98-99% accuracy on clean printed text. The 12 MB model caches after first load.
8. Color Palette — Brand colors from any image
The
Color Palette uses median-cut quantization to extract up to 8 dominant colors with click-to-copy hex codes.
9. Text → Handwriting — Realistic note images
The
Text-to-Handwriting converter renders typed text onto ruled or blank paper using Google Fonts (Caveat, Kalam, Permanent Marker, Dancing Script).
10. Document to PDF — Word and text files
The
Document to PDF converter uses mammoth.js + jsPDF to turn .docx and .txt files into PDFs locally — no Microsoft Office required.
11. Merge PDF — Combine documents securely
The
Merge PDF tool uses pdf-lib to combine and reorder PDF files entirely in browser memory.
The privacy architecture they all share
Open DevTools on any tool page and watch the Network tab during processing — you will see zero outgoing file uploads. Files are read via the browser File API, processed in memory or Web Workers, and exported as a download blob. That is the architectural guarantee every tool on this list shares.