License Agreement
Last updated: February 14, 2026
This End-User License Agreement ("EULA") is a legal agreement between you ("Licensee", "you") and GremlinStudio ("Licensor", "we", "us") for the use of the GremlinStudio desktop application software ("the Software"). By installing, copying, or using the Software, you agree to be bound by this EULA. If you do not agree, do not install or use the Software.
1. Grant of License
Subject to your compliance with this EULA and payment of applicable subscription fees, we grant you a limited, non-exclusive, non-transferable, revocable license to:
- Download and install the Software on devices you own or control.
- Use the Software for your personal or internal business purposes.
The license is tied to the subscription tier you purchase. The number of simultaneous database connections is limited by your tier (Starter: 5 connections, Pro: 10 connections).
2. License Key
Access to the Software after the trial period requires a valid license key. License keys are:
- Personal: Issued to the email address used during purchase and intended for use by a single individual.
- Non-transferable: You may not share, sell, give away, or publish your license key.
- Verified locally: License validation occurs entirely on your machine using cryptographic signature verification. No internet connection is required after initial activation.
- Time-limited: License keys are valid for the duration of your subscription. A new key is issued upon each renewal.
If you believe your license key has been compromised, contact us immediately at info@gremlinstudio.net for a replacement.
3. Free Trial
The Software includes a 7-day free trial beginning on first launch. During the trial, all Pro-tier features are available. When the trial expires, the Software requires a valid license key to continue operation. All data created during the trial is preserved.
4. Restrictions
You may NOT:
- Reverse engineer: Decompile, disassemble, or attempt to derive the source code of the Software, except to the extent expressly permitted by applicable law.
- Modify: Alter, adapt, translate, or create derivative works based on the Software.
- Redistribute: Copy, distribute, publish, or make the Software available to third parties, whether for commercial purposes or otherwise.
- Circumvent protections: Bypass, disable, or interfere with the license verification system, trial period enforcement, feature gating, or any other security measures.
- Generate license keys: Create, forge, or attempt to generate license keys through any means.
- Commercial resale: Resell, sublicense, or offer the Software as part of a commercial service or product.
- Remove notices: Remove, alter, or obscure any copyright, trademark, or other proprietary notices contained in the Software.
5. Ownership and Intellectual Property
The Software is licensed, not sold. We retain all rights, title, and interest in the Software, including all intellectual property rights. This EULA does not transfer any ownership rights to you.
The Software includes the following open-source components, each subject to their respective licenses:
| Component | License | Usage |
|---|---|---|
| .NET Runtime | MIT | Application framework |
| React | MIT | User interface framework |
| Monaco Editor | MIT | Query editor component |
| Sigma.js | MIT | Graph visualization |
| Graphology | MIT | Graph data structure |
| Gremlin.Net | Apache 2.0 | Gremlin protocol client |
| Zustand | MIT | State management |
| SignalR | MIT | Real-time communication |
A complete list of third-party licenses is included with the Software distribution. Use of open-source components does not grant you any rights to the proprietary portions of the Software.
6. Your Data
You retain full ownership of your data. This includes all queries, query results, graph data, connection profiles, style rules, saved configurations, and any other content you create or manage through the Software.
The Software stores your data locally on your machine and does not transmit it to our servers. You are solely responsible for backing up your data. We are not liable for any data loss.
7. Third-Party Services
The Software facilitates direct connections to third-party services that you configure:
- Azure Cosmos DB: The Software connects directly from your machine to your Cosmos DB instances using credentials you provide. We do not proxy, intercept, store, or have access to your database connections or data.
- OpenAI / Azure OpenAI: If you configure a Bring Your Own Key (BYOK) for AI-powered features, API calls go directly from your machine to the AI provider. Your API key never leaves your machine.
Your use of third-party services is subject to their respective terms and conditions. We are not responsible for the availability, security, or performance of third-party services.
8. Updates
We may release updates, patches, or new versions of the Software. Updates are not automatic and require manual download and installation. This EULA applies to all updates unless a new agreement is provided with the update. We are under no obligation to provide updates, maintenance, or support.
9. Support
Support is provided on a reasonable-efforts basis via email. Starter subscribers receive standard email support. Pro and Team subscribers may receive priority support depending on the plan. Support does not include assistance with third-party services, custom development, or training.
10. Disclaimer of Warranties
THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
WE DO NOT WARRANT THAT THE SOFTWARE WILL BE ERROR-FREE, SECURE, OR UNINTERRUPTED. THE SOFTWARE IS A DEVELOPMENT TOOL, AND YOU ARE SOLELY RESPONSIBLE FOR VALIDATING ANY OPERATIONS BEFORE EXECUTING THEM AGAINST YOUR DATABASES, INCLUDING BUT NOT LIMITED TO PRODUCTION DATABASES.
11. Limitation of Liability
TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL GREMLINSTUDIO BE LIABLE FOR:
- Any indirect, incidental, special, consequential, or punitive damages.
- Loss of data, profits, revenue, or business opportunities.
- Damage to databases, including data corruption, deletion, or unauthorized access caused by queries executed through the Software.
- Costs of substitute software or services.
- Any damages arising from third-party service outages or failures.
OUR TOTAL LIABILITY SHALL NOT EXCEED THE SUBSCRIPTION FEES YOU PAID IN THE TWELVE (12) MONTHS PRECEDING THE CLAIM. THIS LIMITATION APPLIES REGARDLESS OF THE LEGAL THEORY ON WHICH THE CLAIM IS BASED.
12. Termination
This EULA is effective until terminated. It terminates automatically if:
- Your subscription expires or is cancelled and you do not renew.
- You breach any term of this EULA.
- We terminate your license for cause (e.g., license key abuse, redistribution).
Upon termination:
- Your right to use the Software ceases immediately.
- You should uninstall and destroy all copies of the Software.
- Your locally stored data is not affected and remains on your machine.
Sections 5 (Ownership), 6 (Your Data), 10 (Disclaimer), 11 (Limitation of Liability), and 13 (Governing Law) survive termination.
13. Governing Law
This EULA shall be governed by and construed in accordance with the laws of the jurisdiction in which GremlinStudio operates, without regard to conflict of law principles. Any disputes shall be resolved in the courts of that jurisdiction.
14. Severability
If any provision of this EULA is held to be unenforceable, the remaining provisions shall remain in full force and effect. The unenforceable provision shall be modified to the minimum extent necessary to make it enforceable.
15. Entire Agreement
This EULA, together with our Terms of Service and Privacy Policy, constitutes the entire agreement between you and GremlinStudio regarding the Software and supersedes all prior agreements and understandings.
16. Contact
For questions about this License Agreement, contact us at:
- Email: info@gremlinstudio.net
- Contact form: gremlinstudio.net/contact