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Legal

Terms of Use

Last updated October 26, 2026

In short: Kiln is a free tool. Your images stay yours. Keep your originals, because compression can discard detail for good.

1. Agreeing to these terms

By using Kiln you agree to these terms. If you do not agree, please do not use it.

2. What Kiln is

Kiln is a web tool that converts, resizes, crops and compresses images in your browser. It may change, pause or end at any time.

3. Your content

You keep all rights to the images you process. We never receive them, so we claim no licence to them. You are responsible for having the right to use, modify and share the images you add.

4. Acceptable use

  • Do not use Kiln to break the law or to process content you have no right to use.
  • Do not try to disrupt the site, overload it with automated requests or interfere with other people's use of it.
  • Do not remove copyright, licence or ownership notices from work that belongs to someone else.

5. Output and file loss

Lossy formats such as JPG and WebP discard image data, and that loss cannot be undone. Results differ between browsers and devices. Always keep your original files. Kiln does not alter your originals, but you should still keep a backup.

6. No warranty

Kiln is provided as it is and as available, without warranties of any kind, express or implied, including fitness for a particular purpose, accuracy or uninterrupted operation.

7. Limitation of liability

To the fullest extent the law allows, we are not liable for any indirect, incidental or consequential damages, or for any loss of data, profit or goodwill arising from your use of Kiln. Nothing in these terms limits liability that cannot be limited by law.

8. Third-party software

Kiln uses open and freely available libraries and fonts, including GSAP, JSZip and jsPDF, which belong to their respective owners and are provided under their own licences.

9. Changes

We may update these terms. The date at the top shows the latest version. Continuing to use Kiln after a change means you accept the updated terms.

10. Governing law

These terms are governed by the laws of add your country or state.

11. Contact

Questions about these terms: add your contact email