Customer Acquisition Cost

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100 calls/day, no card, no spam. Built by one person, in public.

About CAC

CAC is a free, browser-based utility designed to make this task as quick and frictionless as possible. 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. 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 CAC

  • 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.

  • 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'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.

Frequently asked about CAC

Is CAC really free?
Yes — CAC is free for unlimited personal use, with no account required and no watermark on the output.
Will CAC change my original file?
Never. CAC only reads your input file and produces a new output file.
Does CAC work on mobile?
Yes, CAC is fully responsive and tested on iOS Safari and Android Chrome.
What browsers does CAC support?
Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
Do I need to create an account to use CAC?
No. CAC works without any signup. We only ask for an email if you decide to subscribe to a paid plan.