Privacy Policy
Last updated 20 September 2026
This policy explains what data Casla Agency Limited ("Casla", "we", "us") collects when you use Casla Tools at tools.casla.app, and what we do with it. We keep this as short and plain as we can. We are the data controller for the data described here, and we handle it under UK GDPR.
What we collect
- Account data. If you create an account, we store your email address and a securely hashed password (or, if you sign in with Google, the name and email Google shares with us). We use this to identify you, run your session and secure your account.
- Your content. The text, files and media you put into the tools. See "Your content" below.
- Essential browser storage. We use browser storage to keep you signed in and to remember things you ask the service to save, such as tool preferences and saved work. We do not use advertising or analytics cookies.
- Basic technical logs. Our hosting and error monitoring may record standard request data (such as IP address and timestamps) to keep the service running and secure.
Your content
Most Casla Tools — the HTML preview, JSON tools, image tools, QR code generator, encoders, converters and others — run entirely in your browser. Content you process with those tools never reaches our servers.
The AI-powered tools are the exception. When you use Tidying up names, Structuring locations, Does this email match? or Transcribe audio, the text or audio you submit is sent to AI providers in order to produce your result. Transcription is processed through our AI infrastructure provider; the other AI tools are sent directly to OpenAI. We don't sell your content, we don't use it for advertising, and we don't retain it after your request is complete. Please don't paste sensitive personal data into the AI tools unless you're comfortable with it being processed by those providers.
Who we share data with
We only share data with the providers needed to run the service: our hosting and database provider (authentication and account storage), our AI infrastructure provider (transcription), OpenAI (the AI text tools) and Google (if you use "Continue with Google"). We never sell personal data.
How long we keep it
Account data is kept until you ask us to delete your account. Content sent to AI tools is not stored after your request completes. Preferences and saved work kept in your browser remain until you clear your browser data.
Your rights
You can ask us for a copy of your data, correct it, delete it, or object to how we use it. Email hello@casla.agency and we'll sort it out. You also have the right to complain to the UK Information Commissioner's Office (ico.org.uk).
Changes
If we change this policy we'll update the date at the top. Continued use of the service after a change means you accept the updated policy.
Contact
Casla Agency Limited. Privacy questions: hello@casla.agency.