Useful tools for modern engineers.

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Covert Images

Choose the source format and the format you want out.

HEIC to JPEGPNG to WEBPAVIF to JPEG
Open converter Browse all image converters

Timestamp → Datetime

Convert Unix seconds into ISO 8601 strings, UTC formats, and timezone-friendly highlights.

XML Sitemap Generator

Assemble sitemap.xml files with changefreq presets, priority controls, and instant XML preview.

UUID Batch Generator

Generate UUIDs in bulk with checksum helpers to verify batch delivery.

JSON Formatter & Validator

Pretty print, minify, and lint JSON payloads with server-side validation and copy-ready outputs.

Hash Algorithm Explorer

Compare digests across hashing algorithms with grouped presets and checksum diff helpers.

Base64 Encode & Decode

Convert between plain text and Base64 with URL-safe mode, padding helpers, and wrap presets.

Code Beautifier / Minifier

Format or minify HTML, CSS, JavaScript, and SQL with server-side helpers and copy-ready outputs.

CSS Purge Estimator

Spot unused selectors against your markup, build safelists, and copy purge-ready tokens.