Top 10 Free Online Tools Everyone Should Know
You don't need expensive software for everyday tasks. These 10 free browser-based tools handle the most common needs — no downloads, no sign-ups.
1. HEIC to JPG Converter
iPhone photos in HEIC format? Convert to JPG instantly. Universal compatibility, no quality loss.
2. Image Compressor
Reduce image file sizes by 60–80% with the Image Compressor. Adjust quality with a slider, preview savings in real time.
3. Markdown Editor
Write, preview, and export Markdown with the Markdown Editor. Perfect for README files, documentation, and AI chat outputs.
4. PDF to JPG
Extract pages from any PDF as high-resolution images with PDF to JPG. No file uploads — rendering happens in your browser.
5. JSON Formatter
Turn unreadable JSON into beautifully formatted, indented code with the JSON Formatter. Validates and highlights errors.
6. Merge PDF
Combine multiple PDFs into one document with Merge PDF. Arrange pages in order, all processing local.
7. Base64 Encoder / Decoder
Encode or decode Base64 in either direction. Useful for API tokens, data URLs, and JWT debugging.
8. JPG to PDF
Turn images into a PDF document with JPG to PDF. Combines multiple images, supports A4/Letter/Legal page sizes.
9. Markdown to HTML
Convert Markdown to clean HTML. Paste AI outputs (ChatGPT, Claude) and get publishable HTML.
10. UUID Generator
Generate UUIDs for database keys, API tokens, or tracking IDs. Cryptographically random, batch generation.
Why These Tools?
All ten share one principle: privacy-first, browser-based processing. Your files never leave your device. No uploads, no servers, no accounts.