About OmniConvert

What is OmniConvert?

OmniConvert is a free online tool for file format conversion and unit conversion. Whether you need to convert images between formats like JPG, PNG, WebP, and AVIF, or convert units of measurement with NIST-level precision, OmniConvert has you covered — all directly in your browser.

Core Features

• Privacy First — All conversions happen client-side. Your files never leave your device. No server uploads, no data collection.
• NIST Precision — Unit conversions use factors traceable to the National Institute of Standards and Technology (NIST SP 811).
• Multi-language — Full support for English, 中文, 日本語, and Español.
• Fast & Free — No registration, no ads paywall, no file size limits. Convert in under a second.

Technology

Built with modern web technologies including Astro, React, TypeScript, and WebAssembly. Hosted on Cloudflare Pages for global edge performance.

Our Mission

We believe everyone deserves access to free, safe, and accurate conversion tools. OmniConvert is open source and committed to making file and unit conversion accessible to all — with no compromises on privacy or quality.