Best Developer Tools — Ranked
Honest, data-driven rankings of the best online developer tools. We compare features, privacy, speed, and developer experience. Updated regularly.
Best JSON Formatter Online in 2026
DevToolHQ JSON Formatter is the best overall pick for developers: it runs entirely in the browser, supports tree and raw...
Best Regex Tester Online in 2026
Regex101 is the best regex tester overall thanks to its detailed explanation panel, multiple language support, and commu...
Best UUID Generator Online in 2026
DevToolHQ UUID Generator is the best pick: it generates UUIDs instantly in the browser with support for v1, v4, and v7. ...
Best Base64 Encoder Online in 2026
DevToolHQ Base64 tool is the best overall: it encodes and decodes text and files entirely in the browser with no data se...
Best JWT Decoder Online in 2026
jwt.io is the best JWT decoder for signature verification and its comprehensive library list. DevToolHQ is the best choi...
Best Cron Expression Builder in 2026
crontab.guru is the best cron expression tool for its instant human-readable translation and next-run preview. DevToolHQ...
Best Diff Checker Online in 2026
DiffChecker.com is the best overall diff tool with side-by-side and inline views, syntax highlighting, and file upload s...
Best Hash Generator Online in 2026
DevToolHQ Hash Generator is the best overall: it supports MD5, SHA-1, SHA-256, and SHA-512 entirely in the browser. Your...
Best Unix Timestamp Converter in 2026
EpochConverter.com is the best timestamp converter for its comprehensive time zone support and batch conversion. DevTool...
Best Color Picker for Developers in 2026
DevToolHQ Color Picker is the best for developers: it converts between HEX, RGB, HSL, and Tailwind classes instantly in ...
Best SQL Formatter Online in 2026
SQLFormat.org is the best SQL formatter for its dialect-aware formatting and consistent output. DevToolHQ is the best ch...
Best Markdown Editor Online in 2026
StackEdit is the best online Markdown editor for its live preview, sync with Google Drive and GitHub, and offline suppor...
Best URL Encoder Online in 2026
DevToolHQ URL Encoder is the best overall: it encodes and decodes URLs entirely in the browser with support for both enc...
Best CSV to JSON Converter in 2026
DevToolHQ CSV to JSON converter is the best overall: it handles headers automatically, runs client-side, and produces cl...
Best Password Generator in 2026
1Password Generator is the best overall thanks to its integration with the 1Password vault and passphrase generation. De...
Best Lorem Ipsum Generator in 2026
Lipsum.com is the classic choice and the original Lorem Ipsum generator. DevToolHQ is the best developer-friendly option...
Best HTML Encoder Online in 2026
DevToolHQ HTML Encoder is the best overall: it encodes and decodes HTML entities entirely in the browser. Fast, free, an...
Best YAML to JSON Converter in 2026
DevToolHQ YAML to JSON converter is the best overall: it converts accurately in the browser with proper type handling. T...
Best Word Counter Online in 2026
WordCounter.net is the best word counter for its keyword density analysis and readability scores. DevToolHQ is the best ...
Best IP Lookup Tool in 2026
WhatIsMyIP.com is the best for quick IP lookups with detailed geolocation data. DevToolHQ is the best developer-friendly...