The rules for using OpenTag.Studio — written to be readable, not to hide things.
1 · Your agreement
These terms form an agreement between you and Andrew Callaway, the developer of OpenTag.Studio ("OpenTag", "the tool", "we", "us"). By using OpenTag — whether free or Pro — you agree to these terms. If you don't agree, please don't use OpenTag.
If you're using OpenTag on behalf of an organisation (a club, a school, a department), you confirm you're authorised to accept these terms on its behalf.
2 · What OpenTag is
OpenTag is a browser-based sports video analysis and event-coding tool. It lets you:
- Build a customised code window with event and attribute buttons
- Load video files from your computer and tag moments in them
- Capture event locations on sport-specific pitch diagrams
- Define zones for spatial analysis (Pro)
- Visualise tagged data as timelines, frequency tables, and heatmaps
- Export your work as CSV, EDL, Sportscode XML, or session JSON
OpenTag runs entirely in your web browser. Your videos and coded data stay on your computer — see the Privacy Notice for the full picture.
3 · Your use of OpenTag
You don't need an account to use the free tier. Just open the website and start working.
For OpenTag Pro, you create an account (email + password) and subscribe via Stripe. Your Pro status is tied to that account. You're responsible for keeping your account password secure. Don't share your account with people who haven't paid — see acceptable use.
You confirm you're at least 18, or have a parent or guardian's permission if you're between 13 and 17.
4 · Your data and content
You own everything you create with OpenTag. The video footage you load, the events you tag, the notes you write, the configurations you build, the exports you produce — all of it belongs to you.
We don't claim any rights over your content. Your video and tagged data stay on your device by default. We don't analyse it, share it, sell it, or use it to train anything.
You're responsible for making sure you have the right to use the footage you load. If you don't have permission to record, store, or analyse a particular video, OpenTag won't fix that — see acceptable use.
Back up your work. Coded data stays in your browser session until you export it. If you close the tab without exporting, it's gone. Use the Export menu regularly. We're not liable for lost work — see liability.
5 · Our intellectual property
OpenTag — its source code, design, layout, user interface, name, logo, documentation, and SVG pitch library — is the intellectual property of Andrew Callaway. It's protected by copyright, trademark, and other intellectual property laws.
You are granted a non-exclusive, non-transferable, revocable licence to use OpenTag in accordance with these terms. Specifically:
- You may use OpenTag for any lawful purpose, including commercial coaching, analysis, and education.
- You may share screenshots, videos, or descriptions of OpenTag for reviews, tutorials, and academic citation. Attribution appreciated.
- You may not copy, reverse engineer, scrape, decompile, or republish OpenTag's code, design, or assets as your own product.
- You may not remove or alter copyright, branding, or licence notices.
- You may not use OpenTag's name or logo in ways that suggest endorsement we haven't given.
The SVG pitch diagrams included with OpenTag are licensed for use within OpenTag only and may not be extracted and redistributed as a standalone library.
6 · Acceptable use
You agree not to use OpenTag to:
- Process or analyse footage you don't have legal rights to use
- Process footage that infringes the privacy of others — including unconsented recordings of identifiable people in private settings, or footage of children where parental consent hasn't been obtained
- Process content that's illegal, defamatory, harassing, or designed to harm
- Attempt to break, scrape, reverse engineer, or compromise the security of OpenTag
- Bypass Pro-tier gating, share Pro accounts with others, or otherwise circumvent the paid tier
- Use OpenTag in a way that interferes with other users' ability to use it
- Misrepresent OpenTag's data or analysis as something it isn't
For coaches, teachers, and researchers using OpenTag with footage of minors: you are responsible for ensuring you have the appropriate consents, safeguarding procedures, and data-protection arrangements in place. OpenTag is a tool, not a legal framework — follow the rules of your sport, school, or institution.
7 · OpenTag Pro
Subscription. OpenTag Pro is sold as an annual subscription at the price displayed on the OpenTag website at the time of purchase. Payment is processed via Stripe. By subscribing, you agree to the price, the duration, and the features included at the time of purchase.
Account-based. Pro is unlocked on the OpenTag account you sign in with. There's no licence key — your tier is read from your profile each session.
Auto-renewal. Subscriptions auto-renew annually until you cancel. You can cancel at any time via the Manage subscription link inside the app (which opens the Stripe Customer Portal), and you'll retain Pro access until the end of the period you've already paid for.
Price changes. We may change the price of OpenTag Pro for new subscriptions and renewals. We'll give you at least 30 days' notice of any price change affecting your renewal, and you can cancel before the new price takes effect.
Feature changes. We may add new features to Pro at any time. We may also retire features that no longer make sense — if we remove a feature you actively use, we'll notify you in advance.
8 · Refunds and cancellation
You can cancel your OpenTag Pro subscription at any time via the Stripe Customer Portal. Cancellation stops future renewals but doesn't refund the current subscription period — you'll retain Pro access until the end of the period you've paid for.
14-day refund period (UK and EU). If you're a consumer based in the UK or EU, you have a statutory right to cancel within 14 days of subscribing and receive a full refund. To exercise this right, contact us within 14 days of your purchase via the in-app Feedback button. We'll process the refund within 14 days of receiving your request.
By starting to use Pro features (e.g. drawing zones, running advanced queries), you're confirming you want immediate access to the service. If you cancel within the 14-day window after using the service, we may reduce the refund proportionally for the part of the subscription period you've used — this is in line with consumer law.
After the 14-day period. Outside the 14-day window, we don't generally offer refunds. Exceptions may apply at our discretion — for example, if you've been unable to use Pro features due to a sustained technical issue on our side.
If we cancel your subscription. If we cancel for cause (for example, because you've breached these terms), we may withhold a refund. If we cancel for any other reason (for example, if we discontinue OpenTag Pro), we'll refund the unused portion of your current subscription period.
9 · Availability and changes
We aim to keep OpenTag available and working, but we don't guarantee uninterrupted service. The website may be temporarily unavailable for maintenance, updates, or reasons outside our control.
We may add, remove, or change features at any time. We try to avoid disruptive changes and to communicate them in advance, but we reserve the right to modify the tool as it evolves.
If OpenTag is discontinued, we'll give Pro subscribers at least 30 days' notice and refund the unused portion of their current subscription period.
10 · Warranty disclaimer
OpenTag is provided "as is" and "as available", without warranties of any kind.
To the maximum extent permitted by law, we disclaim all express and implied warranties — including warranties of fitness for a particular purpose, merchantability, accuracy, non-infringement, and uninterrupted availability.
OpenTag is a tool for organising and visualising your own observations. The analyses it produces are based on the events you tag — it makes no claims about the truth, fairness, or completeness of your tagging.
Nothing in these terms excludes our liability for: death or personal injury caused by our negligence, fraud or fraudulent misrepresentation, or any other liability that cannot be excluded under English law.
11 · Limitation of liability
To the maximum extent permitted by law:
- We are not liable for any indirect, incidental, consequential, or special damages — including (but not limited to) lost data, lost work, lost opportunity, damage to equipment, or loss of reputation.
- Our total aggregate liability to you for any claim relating to OpenTag in any 12-month period will not exceed the total amount you have paid us in that period. Free-tier users: our maximum liability is £0.
- You're responsible for backing up your own data. Export your sessions regularly.
12 · Termination
You can stop using OpenTag at any time. If you have a Pro subscription, you can cancel via the Stripe Customer Portal (Account → Manage subscription).
We may suspend or terminate your access to OpenTag (including Pro features) if you breach these terms in a material way.
Sections that by their nature should survive termination (intellectual property, liability, governing law, etc.) will continue to apply after termination.
13 · Governing law
These terms are governed by the law of England and Wales. Any dispute arising from these terms or from your use of OpenTag will be subject to the exclusive jurisdiction of the courts of England and Wales.
If you're a consumer based outside England and Wales, you may also benefit from any mandatory provisions of consumer-protection law in your country of residence — these terms don't override those rights.
14 · Contact
Questions about these terms, billing, or your subscription? Use the in-app Feedback button (top bar) and we'll get back to you.
© 2026 Andrew Callaway