License Terms
This is the End User License Agreement (“Agreement”) between you and BigXL Software (“we”, “us”) for the BigXL desktop application and everything shipped with it, including the on-device language models (“the Software”). Installing or using the Software means you accept it. If you do not accept it, do not install it.
1. What you get
We grant you a non-exclusive, non-transferable, revocable licence to install and use the Software according to the edition you hold.
Free. Unlimited use, on as many machines as you like, for personal or business purposes, for as long as you want. No account and no payment.
Trial. 30 days of every paid feature, once per computer, free. It starts when you press the button in Settings, not when you install.
Pro and Enterprise. Each paid key is issued against one computer and works only on that computer. One key is one seat. If you bought eleven seats you receive eleven keys, one per machine. Your paid edition is perpetual for every Software version released during the update or assurance period shown on your invoice.
Pro update coverage. The first year is included. Renewal provides Software versions released during the renewed period. If coverage ends, covered versions keep all Pro features.
Enterprise assurance. The first year is included. Renewal provides Software versions released during the renewed period, including detector and compliance-rule improvements bundled with those versions, technical support, and the ability to generate new compliance certificates. If assurance ends, covered versions keep their Enterprise cleaning, masking, export, audit, and folder-processing features. Certificates already saved to your computer remain yours and can still be opened. New certificates require active assurance.
2. Why the key is tied to a machine
Activation and normal file processing work offline. The Software does not contact a licence server to activate or check your key. If you choose to check for or install an update, it contacts BigXL and sends the signed licence key to verify update coverage. It never sends your files or their contents. Without an activation server there is nothing to count activations, so the machine identifier is what makes a seat a seat.
The identifier is derived from your operating system’s own machine id and shortened. It is not a serial number, a hardware inventory or a user identity, and it is read on your machine, by you, and pasted by you into our activation page.
3. Changing computers
While update coverage or Enterprise assurance is active, you may move a seat to a replacement computer. Deactivate the licence on the old computer and provide its receipt with the new Machine ID. The replacement keeps the same edition and coverage date and does not create another seat. If the old computer is unavailable and you cannot provide a receipt, we may issue a temporary key at no charge for one replacement computer. It expires after 30 days or when the original coverage ends, whichever comes first. Up to 12 temporary keys may be issued for that same computer, one after each expires. These temporary keys do not extend coverage. Because BigXL is offline, we cannot remotely disable a lost computer’s key; you may not use both machines as active seats.
After coverage ends, your covered Software version keeps working on its licensed computer. The licence cannot be renewed for or transferred to a different computer. A different computer requires a new full licence.
Losing the email with your key or reinstalling on the same Machine ID is not a transfer. Ask us and we will send the same key again at no charge.
4. What you may not do
- Share, publish, resell, sublicense or rent a paid key, or use one on a machine it was not issued for.
- Use Pro or Enterprise features without purchasing that edition, use a replacement key as an additional seat, or use a Software release outside the coverage period signed into the key.
- Circumvent or attempt to circumvent the licence check, the trial period, or the redaction features.
- Reverse engineer, decompile or disassemble the Software, except to the extent this restriction is void under law that applies to you, and only to that extent.
- Remove or alter any copyright, trademark or licence notice.
- Redistribute the on-device language models separately from the Software.
Breaking this section ends your licence immediately.
5. What is yours, and what is ours
Your data is yours. We claim no right of any kind over the files you open, the sessions you save, the recipes you write or anything the Software produces. We never receive them.
The Software itself, its source, its design and its models remain ours. This Agreement licenses it to you; it does not sell it.
The Software includes open source components under their own licences. The full list and their notices are in the About window of the application.
6. Redaction is a tool, not a guarantee
The masking, hashing and personal data detection features are there to help you meet your own obligations. They are not legal advice and they are not a certification. You remain responsible for deciding whether a file is safe to send, and for checking it. We do not warrant that automatic detection finds every piece of personal data in every file.
7. Term and termination
This Agreement runs until terminated. It ends automatically if you break section 4, and you may end it at any time by uninstalling the Software and deleting your keys. Sections 5, 6, 8, 9 and 10 survive.
8. No warranty
The Software is provided “as is” and “as available”, without warranty of any kind, express or implied, including merchantability, fitness for a particular purpose and non-infringement. We do not warrant that it will be uninterrupted, error free, or that it will produce a particular result on a particular file.
Nothing here excludes liability that cannot lawfully be excluded, and if you are a consumer, your statutory rights are unaffected.
9. Limit of liability
To the fullest extent the law allows, we are not liable for lost profits, lost revenue, lost or corrupted data, business interruption, or any indirect, incidental, special or consequential loss, however caused.
Our total liability for any claim connected to the Software is limited to what you paid us for it in the twelve months before the claim.
Keep backups. The Software never modifies your source file, but no software is perfect and the responsibility for your own data is yours.
10. General
This Agreement is governed by the laws of applicable law, and the competent courts having jurisdiction have exclusive jurisdiction, without affecting any mandatory right you have to bring a claim where you live.
You may not assign this Agreement. If a clause is held unenforceable, the rest stands. This is the entire agreement between us about the Software.
11. If you installed from an app store
Where you obtained the Software through the Apple App Store, the Microsoft Store or another distributor, that store’s own terms apply alongside this Agreement, and this Agreement is between you and us alone. The store is not a party to it, is not responsible for the Software, and has no obligation to provide support or handle claims about it. Where that store’s terms conflict with this one, the store’s terms govern for that copy, including its own refund process.
12. Export and government use
You confirm you are not located in a country subject to an embargo by the government of the United States or applicable international law, and that you are not on any restricted party list. Where the Software is licensed to a government body, it is licensed as commercial computer software with only the rights given here.
13. Contact
For software licensing inquiries, contact license@bigxl.app. For general commercial inquiries, contact hello@bigxl.app. For legal or privacy matters, contact privacy@bigxl.app.
Last updated 29 September 2026.