Featured Tools & Extension
Fast, privacy-focused browser utilities and developer tools built for daily engineering workflows.
Featured Extension
Office Editor (Docx, Xlsx) — VS Code Extension
Edit Word (.docx) and Excel (.xlsx) files directly inside VS Code without switching apps.
In-editor .docx rich text editing & formatting.
High-performance .xlsx viewer & editor powered by Tabulator (10k+ rows support).
Toggle raw JSON data view for spreadsheet inspection.
Browser Utilities
json-formatter
Format, validate, repair, and minify JSON payloads instantly in your browser with zero server latency.
base64-encoder
Safely encode and decode UTF-8 strings, URLs, and binary buffers to Base64 format locally.
jwt-inspector
Decode JSON Web Token headers, payloads, and expiration timestamps without leaking sensitive auth claims.
hash-generator
Generate SHA-256, SHA-512, and MD5 checksums locally using native Web Crypto API standards.
curl-converter
Convert cURL commands to JavaScript Fetch, Axios, Node.js, Python requests, Go, and PHP snippets instantly in your browser.
regex-tester
Test Regular Expression patterns against input text with live match highlighting and group extraction.
cron-visualizer
Parse 5-part and 6-part Cron expressions, get human-readable descriptions, and calculate the next 5 scheduled execution times in local and UTC.
Built for Daily Developer Workflows
Free, browser-based utilities that format, validate, and convert data locally. No accounts, no ads, no backend data collection.