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What is H2O?

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About Flashcards

When you need this task done in seconds, Flashcards 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 Flashcards

  • 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.

  • 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 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.

Frequently asked about Flashcards

Is Flashcards really free?
Yes — Flashcards is free for unlimited personal use, with no account required and no watermark on the output.
Can I use Flashcards commercially?
Yes. The output of Flashcards belongs entirely to you, with no licensing restrictions.
What browsers does Flashcards support?
Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
Will Flashcards change my original file?
Never. Flashcards only reads your input file and produces a new output file.
Does Flashcards work on mobile?
Yes, Flashcards is fully responsive and tested on iOS Safari and Android Chrome.