Practical guides on file conversion, JSON, PDFs, passwords, and more. Everything is free, privacy-focused, and runs in your browser.
Press Ctrl+V and your screenshot becomes a PDF in seconds — entirely in your browser. No upload, no account, no software needed.
A complete guide to downloading YouTube thumbnails in all resolutions — plus why HD sometimes shows grey and how to fix it.
Instant JSON validation with exact error location — plus auto-repair for trailing commas, single quotes, and unquoted keys.
4 random words beat a 10-character random password on both security and memorability. Here's the math and the NIST 2024 guidelines.
°F = (°C × 9/5) + 32 — with a reference table for common temperatures, mental math shortcuts, and a free instant converter.
No Adobe Acrobat needed. Get word-level PDF comparison — additions highlighted green, removals red, similarity score shown instantly.