Covariance

About Covariance

When you need this task done in seconds, Covariance delivers a clean, focused interface without the friction of a generic tool. Processing runs locally in your browser using modern Web APIs. Nothing is uploaded, nothing is logged, and there is no quota to worry about for casual use. It is one of about a hundred utility tools that share the same philosophy: do one thing, do it well, get out of your way.

When you'd reach for Covariance

• You're on a public or shared machine and don't want to leave traces of what you're working on.

  Travelers, contractors, anyone working from a friend's computer.

  Nothing is uploaded, nothing persists if you're not signed in.

• You need to handle a one-off task right before a meeting and don't have time to install anything.

  Anyone working remotely on a borrowed or restricted machine.

  Open the page, get the result, paste it into your doc — under a minute.

• You're hitting the daily limit of a paid SaaS and need a backup option for a single quick job.

  Marketers and ops people whose primary tool is metered.

  Stay productive without burning credits.

• You're cleaning up a folder of files that accumulated over a project and need to standardize them.

  Designers, writers, and developers wrapping up deliverables.

  Drop each file in, copy the output, move on.

Frequently asked about Covariance

Is Covariance really free?

Yes — Covariance is free for unlimited personal use, with no account required and no watermark on the output.

Are my files uploaded to a server when I use Covariance?

Covariance processes everything in your browser using local APIs. Your files never leave your device.

Do I need to create an account to use Covariance?

No. Covariance works without any signup. We only ask for an email if you decide to subscribe to a paid plan.

Can I use Covariance commercially?

Yes. The output of Covariance belongs entirely to you, with no licensing restrictions.

Will Covariance change my original file?

Never. Covariance only reads your input file and produces a new output file.