The hidden cost of free online converters
Running conversions for the public is not cheap. Video encoding is processor intensive, storage costs money and bandwidth costs more. A site handling a few million conversions a month has a real infrastructure bill. That bill has to be paid, and the way a site pays it tells you a lot about what you are actually agreeing to.
The four business models
- Advertising. The most common and the most honest. You see ads, the site earns a small amount per thousand visits, your file is processed and deleted. The cost to you is attention and clutter.
- Freemium. The free tier is deliberately limited so the paid tier looks necessary. File size caps and daily limits are the product, not a technical constraint.
- Bundled downloads. Older desktop converters and a few web ones push an installer or a browser extension alongside the result. Read what you are clicking.
- Data. The least visible. Detailed tracking, fingerprinting and sale of behavioural profiles to advertising exchanges.
Questions worth asking
- Where is the file processed, and for how long is it kept? A serious service states a deletion window, usually one to twenty four hours.
- Does the terms of service claim any licence over your uploaded content? Some do, in wide language.
- Is there a company behind it with a real address, or only a contact form?
- Does the site work without an account? Requiring an email for a one-off conversion is a data collection step, not a technical need.
Where this site stands
GIF Diet processes files in your browser, so there is no server bill to recover. That removes the pressure that produces limits and subscriptions. Advertising covers the modest cost of hosting the pages themselves, and there is a donation link for anyone who wants to help more directly. No account, no uploads, no daily cap.
That is not a claim to virtue. It is a consequence of the architecture. When files never leave the device, the incentive to monetise them never exists in the first place.