ATDev Tools is a free collection of practical developer utilities for everyday work: text cleanup, hashing, color picking, image conversion, QR/barcode generation, CSV to Excel, Markdown to Word, SQL to ERD, vector embeddings formatting, API testing, FCM notification testing, and prompt building for coding assistants.
Most tools run entirely in your browser — no sign-up, no install, no account. Pick a tool and start in one click.
