About Sondra

We built Sondra because uploading files to process them never made sense.

Every existing noise removal and compression tool asks you to send your files to a server somewhere. Your podcast interview, your client call recording, your personal video. We thought there was a better way.

Sondra processes everything directly in your browser. Your files never leave your device. There is no queue, no waiting, no account, no subscription. Just upload, process, and download.

How it works

Sondra uses FFmpeg compiled to WebAssembly. The same powerful audio and video processing engine used by professionals runs entirely inside your browser tab. No plugins, no installation, no server.

Who we are

Sondra is built and maintained by Sondra Labs, a small team based in Singapore focused on building useful, privacy-respecting tools for creators and professionals.

Our principles

• Free to use, always
• No data collection beyond anonymous analytics
• No accounts, no friction
• Files stay on your device

Get in touch

We'd love to hear from you. Bug reports, feature ideas, or just to say hi.

📧 sondra.app@gmail.com