300 Free Online Tools — From Code Formatters to Love Calculators to Typing Tests

DevTools.run just hit 300 static pages. Nearly 1,900 total URLs including 990 crypto price converters. Built 145 new tools in ONE session. Here are the categories: Coding (100+): JSON, regex, base64, hash, JWT, CSS generators, SQL, TypeScript, Docker, Nginx, GitHub Actions, and dozens more Writing (8): Grammar checker, plagiarism detector, paraphraser, cover letter, resume builder, AI writer, text case converter Images (6): Resizer, cropper, meme generator, OG images, text to image, image to base64 Social Media (8): Instagram bio/captions, hashtags, tweets, LinkedIn posts, YouTube thumbnails, fancy text Business (8): Name generator, domain checker, invoice, privacy policy, terms of service, Stripe/PayPal fee calculators Games (7): Tic tac toe, rock paper scissors, coin flip, dice roller, spin wheel, would you rather, truth or dare Converters (8): Unit converter, timezone, text to binary/morse, number to words, text to PDF Crypto (5 + 990 pages): Price calculators, swap, token scanner,