Terms of Service

1. What CompressKit is

CompressKit is a browser-based file compression, conversion and optimization tool. All file processing happens on your own device, inside your browser. We operate a small backend only for accounts, usage limits and payments — it never receives your files, their contents or their filenames.

By using the site you agree to these terms. If you do not agree, please do not use the service.

2. Accounts

Sign-in is handled by Google. Creating an account requires a Google account with a verified email address. We store only your email address, a session identifier and usage counters — never files.

Keep access to your Google account secure; you are responsible for activity under your account. One person, one account. Accounts are personal and may not be sold, shared or transferred.

3. Free use

• Without an account: one compression per device. This is tracked with a device cookie and is intended as a trial, not a quota to work around.
• With a free account: three compressions per day. The counter resets daily (UTC).
• Deliberately circumventing these limits — for example by scripting account creation, resetting device identifiers programmatically, or automating requests — is a breach of these terms.

4. The $2 lifetime purchase

A one-time payment of US$2 unlocks unlimited compressions for the lifetime of the service, on your account. It is not a subscription: there is no renewal, no recurring charge and nothing to cancel.

"Lifetime" means the lifetime of the CompressKit service as operated by us. If we ever shut the service down permanently, we will give reasonable notice on this site. The purchase is personal, non-transferable and tied to the account that made it.

Payments are processed by Polar, which acts as merchant of record. Your payment details are handled by them under their own terms — we never see or store your card details.

5. Refunds

If the lifetime purchase is not what you expected, ask for a refund within 14 days of purchase and we will refund it in full through Polar — no interrogation, no restocking fees. Contact us using the details at the end of this page.

We may also issue a refund on our own initiative if a purchase was clearly made in error or the service was unavailable for an extended period. This policy does not limit any statutory consumer rights you have under applicable law.

6. Acceptable use

You agree not to:

• use the service to process files you have no legal right to process;
• attempt to bypass usage limits, payment requirements or security controls;
• probe, overload or disrupt the account or payment infrastructure;
• resell access to the service or present it as your own product.

We may suspend or terminate accounts that breach these rules. Where practical we will explain why.

7. Your files and results

Your files never leave your device, so we cannot lose, leak or sell them — and we cannot recover them either. Keep your originals. Processing is provided as-is: some operations are lossy, some may refuse a file honestly, and results are always shown with their real measured sizes, including when output grows.

You are responsible for ensuring you have the right to modify the files you process (including any embedded media or fonts with their own licences; the tools refuse restricted fonts rather than overriding their embedding permissions).

8. Availability and warranty

The service is provided “as is” and “as available”, without warranties of any kind, express or implied, to the maximum extent permitted by law. We do not guarantee uninterrupted availability, and browser capabilities (such as video encoders) vary by device — the site reports unsupported capabilities honestly rather than failing silently.

To the maximum extent permitted by law, our total liability arising from the service is limited to the amount you paid us in the twelve months before the claim (at most US$2 for a lifetime purchase). Nothing in these terms excludes liability that cannot be excluded by law.

9. Changes to these terms

We may update these terms as the product evolves. Material changes will be reflected by the “last updated” date at the top of this page, and continued use after a change means you accept the updated terms. The refund policy above always applies to purchases made under the terms in force at the time of purchase.

10. Contact

Questions, refunds or data requests: support@compresskit.site. We aim to respond within a few business days.

See also our Privacy page for exactly what data the account system receives.