Formatters, encoders, regex testers, and API helpers for daily development.
Format, minify, and validate JSON locally in your browser.
Parse, format, minify, and validate JSON in your browser (same engine as JSON formatter).
Generate repository documentation prompts for AI assistants.
Encode UTF-8 text to Base64 or decode Base64 back to text in your browser.
Format, minify, and validate XML locally in your browser.
Interactive editor to build and test regular expressions with live highlighting.
Hash text with SHA algorithms or encrypt/decrypt with AES-GCM in your browser.
Generate MD5 hex digests for UTF-8 text in your browser.
Generate SHA-1, SHA-256, SHA-384, or SHA-512 hex digests locally.
Convert XML documents to JSON and back with a single root element.
Syntax-highlight source code and copy styled HTML for docs or slides.
Visually design button styles and copy ready-to-use CSS and HTML.
Configure rows and columns and copy a ready-made HTML table.
Visually build Linux cron expressions with presets and a plain-English summary.
Suggest camelCase, snake_case, or PascalCase names from word combinations.
Generate random locally administered MAC addresses with optional vendor prefixes.
Build linear or radial CSS gradients with multiple color stops and copy the rule.
Generate border-radius, box-shadow, and transition CSS with a live preview.
API platform for designing, testing, and documenting HTTP services.
Transform XML with XSLT and preview the resulting HTML in your browser.
Open-source API client for REST, GraphQL with full request building and response inspection.
Visualize how a JavaScript-style regular expression matches sample text.
Turn source code into polished images for slides or social posts.
Search real open-source projects for variable naming inspiration.
Step-through regex debugger with flavor notes and explanations.