Legal
Terms and Conditions
These terms govern your use of localsink and localsink.io. They are a contract between you and localsink, LLC.
Last updated
1. Who you are contracting with
localsink (the Software) and localsink.io (the Site) are published by localsink, LLC, a limited liability company formed in the State of Michigan and trading as localsink (we, us, our). By using the Software or the Site you are contracting with localsink, LLC.
In these terms, you means the person or organization using the Software. If you are using it for or on behalf of an organization, you confirm you have authority to bind that organization, and you means that organization.
2. Acceptance
By downloading, installing, running or continuing to use the Software, or by purchasing a commercial license, you agree to these terms. If you do not agree, do not use the Software.
You must be at least the age of majority in your jurisdiction and have the legal capacity to enter into this contract.
3. What the Software is
localsink is a local-first log sink for software development. It runs as a single process on your own machine, receives logs your applications emit, stores them in a local database file, and exposes them through a web interface, a REST API and a Model Context Protocol (MCP) endpoint on a port you control.
The Software is designed to run locally. We do not host it, we do not operate a server that receives your logs, and your log data does not reach us in the course of normal use. What that means for your data is set out in our Privacy Notice.
4. License
The source code we publish is licensed under the PolyForm Noncommercial License 1.0.0, and that license governs what you may do with the source itself. It permits use, modification and redistribution for non-commercial purposes only. Commercial use of the Software, modified or unmodified, is not licensed by it and requires a commercial license from us under these terms.
Separately, and subject to these terms, we grant you a limited, non-exclusive, non-transferable, non-sublicensable right to install and run the Software for its intended purpose. The Software is source-available: you may read, audit and build from the source we publish. It is not open source, and neither license is a transfer of ownership.
Community Edition
The Community Edition is free of charge, with no feature limits and no time limit, for personal projects, learning, academic work, and contributing to open source software — that is, use that is not commercial. Your rights to modify and redistribute the source for those purposes are the ones the PolyForm Noncommercial License 1.0.0 grants; nothing in these terms reduces them.
Licensed Edition
Commercial use requires the Licensed Edition. Commercial use means use in the course of business, including internal tooling at a company, work on a product or service you charge for, and work delivered to a client — including by a solo consultant or freelancer. Current terms and prices are on our pricing page.
The two editions are the same Software. There is one build, one set of features and no enterprise-only fork; the edition is a license state, not a different program. What is purchased is the right to use the Software commercially.
The Licensed Edition is validated against our licensing service when you enter your key and periodically afterward. A validation that cannot reach us does not interrupt the Software: it keeps running until the expiration date recorded at first validation, and retries in the background. If the Licensed Edition expires or is not renewed, localsink reverts to the Community Edition — it keeps working, with the same features, but you may no longer use it commercially.
5. Restrictions
Except where the law expressly permits it regardless of contract, and except where the PolyForm Noncommercial License 1.0.0 permits it for a non-commercial purpose, you may not:
- resell, commercially redistribute, sublicense, rent or host the Software as a service for third parties;
- remove, obscure or alter any copyright notice, license text or attribution in the source;
- tamper with, disable or work around license key validation, or use a license key you are not entitled to;
- use the Software commercially without a current commercial license.
6. Acceptable use
You must not misuse the Software or the Site. Specifically, you must not:
- Use them unlawfully — for any purpose that breaks applicable law or regulation, or that infringes the rights of others;
- Commit fraud or send spam — including misrepresenting who you are, falsifying license entitlement, or using the Site to distribute unsolicited or deceptive messages;
- Infringe intellectual property — including copying, republishing or creating derivative works from our software, documentation or branding beyond the rights granted here;
- Interfere with security — including introducing malware, probing or scanning our systems, attempting unauthorized access, scraping the Site at a scale or in a manner that degrades it, or bypassing any access control.
Reporting a security vulnerability to us in good faith is not a breach of this section. Send reports to legal@localsink.io.
7. Intellectual property
We retain all right, title and interest in and to the Software, the Site, the source code, the documentation and the localsink name and branding, including all intellectual property rights in them. Publishing our source does not transfer ownership of it. Nothing in these terms grants you any right in our trade marks.
You retain all rights in your own data. Your logs, your source code and anything else you run the Software against remain yours; we claim no license over them, and in ordinary use we never receive them.
8. Purchases, billing and tax
Our order process is conducted by our online reseller Paddle.com. Paddle.com is the Merchant of Record for all our orders. Paddle provides all customer service inquiries and handles returns. Questions about the Software itself reach us at support@localsink.io.
Paddle also collects and remits any sales tax or VAT due on your purchase. Your contract of sale for the transaction is with Paddle; your contract for use of the Software is with localsink, LLC under these terms.
Payment, billing frequency, renewal, cancellation, currency, tax and invoicing are governed by Paddle's buyer terms, which apply to your purchase in addition to these terms. You can manage your order, retrieve invoices and cancel a subscription at paddle.net.
Prices are stated on our pricing page. We may change prices, but a change does not affect a term you have already paid for. Where a license renews, it renews at the price shown at the time of renewal, and you will be notified before that happens.
9. Refunds
We offer a 30-day refund on commercial licenses. The full terms, and how to request one, are in our Refund Policy.
10. Availability and service level
We do not guarantee that the Software or the Site will be uninterrupted, timely, secure or error-free. The Software is provided as a tool you run yourself, and no uptime commitment, service level agreement or support response time is offered or implied unless we have agreed one with you in a separate signed document.
We may change, suspend or discontinue any part of the Software or the Site, including releasing new versions that change behavior. We will not remove functionality from a version you have already installed.
11. Support
Free users are supported through public channels on GitHub, on a best-effort basis. Commercial license holders may additionally contact support@localsink.io. Support is a commercially reasonable effort to help, not a guarantee that any given issue will be resolved.
12. Disclaimer of warranties
To the fullest extent permitted by law, the Software and the Site are provided "as is" and "as available", and we disclaim all warranties, conditions and representations, whether express, implied or statutory, including any implied warranty of merchantability, fitness for a particular purpose, title, and non-infringement. We do not warrant that the Software will meet your requirements or that any defect will be corrected.
Some jurisdictions do not allow the exclusion of certain warranties. Where that is so, this section applies to the fullest extent that jurisdiction permits, and nothing here removes a right you have that cannot be excluded by contract.
13. Limitation of liability
To the fullest extent permitted by law, we are not liable for any indirect, incidental, special, consequential, exemplary or punitive damages, or for any loss of profits, revenue, business, goodwill, or loss or corruption of data, however caused and under any theory of liability, even if we have been advised of the possibility of such damages.
Our total aggregate liability arising out of or relating to these terms, the Software or the Site is limited to the greater of (a) the total fees you paid for the Software — whether to us or to our merchant of record on our behalf — in the twelve months before the event giving rise to the claim, and (b) one hundred US dollars (US$100).
Nothing in these terms limits or excludes liability for fraud or fraudulent misrepresentation, for death or personal injury caused by negligence, or for any other liability that cannot be limited or excluded under applicable law.
14. Indemnity
You will indemnify and hold us harmless from any claim, damage, loss, liability and expense (including reasonable legal fees) arising out of your unlawful use of the Software, your breach of these terms, or the data and content you process with the Software.
15. Suspension and termination
We may suspend or terminate your license and your access to the Site if:
- you are in material breach of these terms and, where the breach can be fixed, you have not fixed it within 14 days of us asking you to;
- you have not paid a fee that is due;
- we reasonably believe your use presents a security or fraud risk to us, to other users, or to a third party; or
- you repeatedly or seriously violate the acceptable use section above.
You may stop using the Software at any time. To end a paid license, cancel it at paddle.net.
On termination, your right to use the Software commercially ends and you must stop commercial use. Because the Software runs on your own machine and stores its data there, your logs and everything you captured with them stay with you — there is nothing for us to export back to you, and removing the Software and its database file is in your hands. We do still hold the business records described in our Privacy Notice, such as your purchase record and any correspondence; that notice sets out how long we keep them and how to ask us to delete them.
16. Changes to these terms
We may update these terms. If a change is material we will give reasonable notice — by a notice on the Site or by email where we have your address — before it takes effect. Continuing to use the Software after a change takes effect means you accept the updated terms. The date at the top of this page is the date of the current version.
17. General
Governing law and disputes
These terms are governed by the laws of the State of Michigan, United States, without regard to its conflict-of-laws rules. The state and federal courts located in Michigan have exclusive jurisdiction over any dispute arising out of or relating to these terms, and both parties submit to the jurisdiction of those courts. If you are a consumer, this does not deprive you of the protection of the mandatory law of the country where you live.
Assignment
You may not assign or transfer these terms without our written consent. We may assign them in connection with a merger, acquisition, or sale of all or substantially all of our assets.
Force majeure
Neither party is liable for a failure to perform caused by an event beyond its reasonable control, including natural disaster, war, terrorism, civil unrest, epidemic, labor dispute, or failure of a utility, network or third-party service provider. Performance is excused for as long as the event continues.
Severability and waiver
If any provision of these terms is found unenforceable, the rest remains in force and the unenforceable provision is modified to the minimum extent necessary to make it enforceable. A failure to enforce a provision is not a waiver of it.
Entire agreement
These terms, together with the Privacy Notice and the Refund Policy, are the entire agreement between you and us about the Software, and replace any earlier understanding about it. This does not displace the PolyForm Noncommercial License 1.0.0, which continues to govern the published source code alongside these terms. Where these terms and that license conflict over what you may do with the source for a non-commercial purpose, that license prevails.
18. Contact us
Questions about these terms:
- Legal — legal@localsink.io
- Licensing and purchasing — licensing@localsink.io
- Anything else — hello@localsink.io
Or write to us at the address above. Our contact page lists every route.