Excalidraw – Instant Sketch‑Style Diagramming
Excalidraw is a browser‑only drawing board that opens with a single URL, no sign‑up required. Its sketchy aesthetic keeps you in brainstorming mode, letting you throw together flowcharts, mind maps, or Docker stack diagrams in seconds.
- No account or subscription needed.
- Zero learning curve – start drawing immediately.
- Lightweight UI that stays out of the way.
Stirling‑PDF – Full‑Featured PDF Suite in Your Browser
Stirling‑PDF delivers Adobe‑level PDF editing without leaving the browser. The recent redesign adds a clean interface and a powerful Multi‑tool workbench that chains operations like merge, compress, and convert without re‑uploading files.
- Merge, split, compress, OCR, and more – all free.
- All processing happens locally, preserving privacy.
- Single‑upload workflow speeds up repetitive tasks.
IT‑Tools – One Dashboard for 100+ Utilities
IT‑Tools consolidates a massive collection of developer utilities—JSON formatter, password generator, Unix timestamp converter, CSS minifier, YAML‑to‑JSON, etc.—into a searchable, star‑enabled sidebar.
- Over 100 tools categorized and searchable.
- Star your favorites for instant access.
- Keyboard shortcut (Cmd + K) launches the search instantly.
Photopea – Professional‑Grade Image Editing as a PWA
Photopea behaves like a desktop editor but runs entirely in the browser. It opens PSD, XCF, Sketch, and other layered files, offering Adobe‑compatible shortcuts and a full set of masking, compositing, and export options.
- Supports PSD, XCF, Sketch, and more.
- Keyboard shortcuts mirror Adobe Photoshop.
- Runs as a Progressive Web App—appears in your taskbar like a native app.
Bonus: PairDrop – Peer‑to‑Peer File Sharing
PairDrop uses WebRTC to transfer files directly between devices on the same network, eliminating the need for cloud storage during the transfer.
- Zero server upload – files stay local.
- Works on any browser‑enabled device.
- Fast, secure, and completely open source.