6.6 gallon expansion tank

Expansion volume: 2.67 gallons

Expansion rate: 5.33%

Acceptance factor: 40.3%

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About Expansion Tank

When you need this task done in seconds, Expansion Tank delivers a clean, focused interface without the friction of a generic tool. Built to be the kind of tool you bookmark and use weekly: no surprises between visits, no degraded free tier, and a UI that gets out of the way. If you find yourself doing this regularly, the rest of the utility suite covers most adjacent tasks with the same approach.

When you'd reach for Expansion Tank

  • 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 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 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 Expansion Tank

Does Expansion Tank work on mobile?
Yes, Expansion Tank is fully responsive and tested on iOS Safari and Android Chrome.
Do I need to create an account to use Expansion Tank?
No. Expansion Tank works without any signup. We only ask for an email if you decide to subscribe to a paid plan.
What browsers does Expansion Tank support?
Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
Can I use Expansion Tank commercially?
Yes. The output of Expansion Tank belongs entirely to you, with no licensing restrictions.
Are my files uploaded to a server when I use Expansion Tank?
Expansion Tank processes everything in your browser using local APIs. Your files never leave your device.

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