New
Free SQL Formatter — Format and Beautify SQL Queries in Your Browser
Format messy SQL queries into readable, well-indented code. Supports MySQL, PostgreSQL, SQLite, and more. Runs in your browser — no queries sent to any server.
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Tag: developer tools
New
HEX to RGB Converter — Convert Color Codes Free in Your Browser
Convert HEX colors to RGB, HSL, and back instantly. All conversions run locally in your browser — no server, no tracking, works offline.
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JSONL Validator — Validate Newline-Delimited JSON Files Free in Your Browser
Validate JSONL (JSON Lines) files line by line. Instant error reporting, no uploads, works offline. Perfect for AI training data and log file validation.
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JWT Decoder — Decode and Inspect JWT Tokens Securely in Your Browser
Decode JWT tokens and inspect headers, payloads, and signatures without sending them to any server. Free, private, works offline.
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Format AI Chat Prompts — Free Prompt Formatter for GPT, Claude, Gemini
Format multi-turn AI conversations with proper system, user, and assistant roles. Visualize, copy, and export prompts for any LLM — runs entirely in your browser.
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Cron Expression Tester — Validate and Understand Cron Jobs in Your Browser
Test and validate cron expressions instantly. See the next run times, understand the schedule, and debug cron syntax — all in your browser with no data sent anywhere.