Scrawlspace: free online PDF, image and developer tools

A hand-drawn multiplayer whiteboard plus 6 toolboxes: PDF, image, JSON, diff and developer utilities. Free, runs in your browser, no sign-up.

All tools

Board: Hand-drawn whiteboard with live to-do, code, table and API cards. Multiplayer and encrypted.
Diff Checker: Compare two texts or files side by side. Line and word highlights, JSON mode, ignore whitespace, export a patch.
JSON Viewer: Paste JSON to validate, format, minify and explore it as a collapsible tree.
CSS Formatter: Beautify messy CSS or minify it for production. Handles nesting, @media and comments.
Developer Utilities: JWT decoder, Base64/URL/HTML encoder, hashes, UUID/ULID and password generators, timestamp converter, cron explainer and what's my IP.
PDF Tools: Edit, merge, split, compress, convert (Word, Excel, PowerPoint, JPG), OCR, sign, protect, unlock, redact and compare PDFs. Files stay on your device.
Image Tools: Compress, resize, crop and convert (HEIC to JPG, WebP, AVIF, Base64). Optimise and render SVGs. Generate QR codes, favicons and OG images.
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