Your CAT Psychotherapy File, at your own pace
A private space to reflect on patterns in your thoughts, feelings and relationships. Work through it in your own time, on any device, and bring it to your therapy sessions as a PDF.
- Encrypted on your device
- No account, no email needed
- Accessible by design
- Free to use, forever
Four simple steps, with as much time as you need between them
Start whenever you are ready
Open the file on a phone, tablet or computer. There is nothing to install, no account to create and no email address to give.
Choose initials and a password
Your initials and start date identify your saved file. Your password is the key that encrypts everything you write, so keep it somewhere safe.
Work through the sections
Six areas of reflection, with a short explanation before each one. Your answers save as you go, so you can stop and pick up where you left off.
Download it as a PDF
When you are ready, export a clean, formatted PDF to print, keep for yourself, or share with your therapist.
The whole psychotherapy file, in six parts
The file follows the structure of the CAT Psychotherapy File. Work through the sections in order or jump to any of them from the menu — your progress is kept either way.
The Traps
The recurring patterns you find yourself caught in, and where they tend to lead.
The Dilemmas
The either/or choices that feel impossible to resolve, and what pulls you each way.
The Snags
What gets in the way when you try to make a change, and what that protects you from.
Difficult and Unstable States
Rating how often difficult states appear, and what tends to happen around them.
Different States
Naming the different states of mind you move between, in your own words.
Self-Reflection
Open space to note what you have noticed, ready to talk through in your sessions.
Curious about the detail? Open the file and read the introduction, or start a new file whenever you feel ready.
Hand your clients the file before the work begins
Clients can complete the CAT Psychotherapy File privately, in their own time, and decide for themselves what they bring to the room.
Your clients stay in control
Nothing in a client's file is visible to you, or to anyone else, until they choose to export it and send it to you.
Nothing to set up or manage
Share the address and the tool works on any device. No accounts, no licences, and no client records held on your systems.
Usable by more of your clients
Adjustable text size, high contrast, read-aloud and full keyboard support mean fewer barriers to completing the file.
Read the accessibility statement to see how the file supports a wide range of clients.
Your answers stay yours
The Digital CAT Psychotherapy File is built to protect your personal reflections, in line with the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018.
Encrypted before it leaves your device
Everything you write is encrypted using AES-GCM on your own device, before it is saved to the server. What is stored cannot be read by anyone — including us — without your password.
Only your password opens it
Your encryption key comes from the password you choose, and your password is stored only as a one-way hash (SHA-256). There is no master key and no recovery route.
Nothing personal, nothing shared
We never ask for your name, email address or phone number. Your answers are not sold, analysed or passed to any third party, and are never used for advertising or research.
Delete it whenever you like
Starting a new file permanently removes your saved answers from the server. You stay in control of your data from beginning to end.
Made to be usable by everyone
The file aims to conform to WCAG 2.1 Level AA and to the accessibility requirements of the UK Equality Act 2010.
Adjustable text size
Choose from Small, Medium, Large or Extra Large. Everything reflows responsively, up to 200%, with no horizontal scrolling.
Light, dark and high contrast
Three colour themes for low vision or colour sensitivity, all keeping a minimum contrast ratio of 4.5:1.
Read aloud
Built-in text to speech on every major content section, with play, pause and adjustable speed.
Keyboard and screen reader friendly
Every interactive element is at least 44 × 44 pixels, and the app works with VoiceOver, TalkBack and full keyboard or switch navigation.
Take the file with you
Install the app on your phone or tablet for a full-screen, offline-friendly experience with reminders to pick up where you left off.
Free to use, forever — no subscription, no in-app purchases, and no locked features.
Nothing to install? The file works right here in your browser — nothing is downloaded, and your answers save as you go.
Start your file