CodeUtilityKit
100+ private developer tools that run in your browser
CodeUtilityKit launched on July 7, 2026 with 4 votes, #6,023 of 24,623 launches that month and more than 75% of that year's launches.
What it does
CodeUtilityKit is a free collection of browser-based developer tools for everyday coding, formatting, conversion, debugging, and productivity tasks. It includes tools like JSON Formatter, JWT Decoder, Base64 Encoder/Decoder, SHA256 Generator, CSV to JSON, JSON to CSV, Password Generator, UUID Generator, Regex Tester, QR Code Generator, Timestamp Converter, and many more. Everything runs locally in your browser, so your code, tokens, API keys, passwords, and files stay on your device.
100+ free developer tools that run in your browser: JSON formatter, JWT decoder, Base64, hashing, CSV converters and regex tester. Private, fast, no upload.
JSON formatter, JWT decoder, Base64 encoder, SHA256 generator, CSV converter, and 100+ more utilities. All free, all private — your data never leaves your device. Find the right tool for your job. We cover everything from JSON formatting to cryptography. Turn plain text into flowcharts, sequence diagrams, and more. Check domain authority, age, and WHOIS data from live sources. Designed for developers who value speed, privacy, and reliability. All tools run entirely in your browser. No data is ever sent to a server. Your code, tokens, and secrets stay on your device. No server round-trips means instant results. Tools respond immediately as you type with no loading spinners. Every tool is…from codeutilitykit.com
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