Terms of Service

Last updated: 30 November 2025

1) Agreement to Terms

These Terms of Service (“Terms”) govern your access to and use of the DecompilerAI services, including the website decompiler.ai and the upload/chat interface at decompiler.ai/upload (collectively, the “Service”). By creating an account, purchasing a subscription, or using the Service, you agree to be bound by these Terms.

The Service is aimed at developers, security researchers, and organizations. We do not provide legal advice. You are solely responsible for ensuring that your use of the Service is lawful in your jurisdiction and under all applicable licence terms.

2) Provider Information

Operator: DecompilerAI Akin Yilmaz
Registered Address: Industriestraße 59, 50389 Wesseling, Germany
Contact: support@decompiler.ai
VAT Notice: Small business according to § 19 UStG (Kleinunternehmerregelung); no VAT is charged or shown.

3) Eligibility; Business Users

Our products and services are intended for entities and persons who have reached the age of majority under the laws applicable to them. Younger persons may only use our products and services with the consent and under the responsibility of their parents or legal guardians.

If you use the Service on behalf of a company, university, organisation, or other entity, you represent and warrant that you are authorised to bind that entity, and “you” will refer to that entity. We do not assess whether your use is compliant with your internal policies or third-party contracts; you must check this yourself.

4) Accounts & Security

Keep your login credentials confidential; you are responsible for all activities under your account.
Do not share accounts or create multiple accounts without our written permission.
Passwords are stored hashed (e.g., using SHA-256 or comparable standards).
We may use fingerprinting and IP logging strictly for cybersecurity and abuse prevention.
Third-party authentication (for example, Google Login) may be provided, and additional protection mechanisms may be used.

5) Service Description & Availability

The Service allows users to upload certain programs and obtain AI-assisted decompilation results and interact with chat features. We may also use third-party AI providers (for example, OpenAI) to post-process and improve decompiled code and related outputs as part of the Service.

Delivery of the digital service is generally immediate after purchase or activation. While we strive for reliability, we do not guarantee uninterrupted or error-free operation. Downtime or degraded performance may occur due to maintenance, updates, outages, third-party provider issues, or factors beyond our control. Beta or experimental features may change or be removed at any time.

The Service is not designed or intended for use in safety-critical systems, life-support, or other environments where failure or errors could lead to death, personal injury, or severe damage. You must always review and test results before using them in production, security-sensitive, or high-risk contexts.

6) Content & Customer Responsibility

We may use automated and manual measures to protect the Service, our users, and third-party rights, and to comply with applicable law. These measures may include file-type validation, malware and abuse detection, hash or signature matching against known prohibited or protected material, export-control and sanctions checks where appropriate, and the review of specific content in response to notices, complaints, or concrete risk indicators. Such measures are risk-based and do not constitute a general obligation to monitor all Customer Data. You are solely responsible for the accuracy, quality, integrity, legality, and appropriateness of all data, code, binaries, and other materials you upload or otherwise provide (“Customer Data”).

You must ensure that you have the necessary rights, licences, consents, or legal basis to upload, decompile, and analyse any software or systems using the Service, including any required permissions from the rights holders.
You are responsible for complying with applicable laws on reverse engineering, decompilation, copyright, trade secrets, export controls, and other regulations.
If you are bound by confidentiality obligations (for example, NDAs or internal policies), you must ensure you are permitted to upload the relevant code or data to cloud services and third-party processors such as hosting providers and AI service providers.
You should avoid uploading personal data or confidential information of third parties unless you have a lawful basis to do so and it is strictly necessary for your use of the Service.

We may refuse to process, or may remove, content that we believe infringes rights, violates law, or breaches these Terms. We may implement technical measures to discourage or block the analysis of certain software or content (for example, known protected software), but we are not obliged to do so and such measures do not imply endorsement or approval by any third party.

7) Use of Customer Data

You retain ownership of your Customer Data. You grant us a non-exclusive, worldwide, royalty-free licence to host, store, process, transmit, and display Customer Data solely to:

Provide, operate, secure, and maintain the Service for you;
Generate decompilation results and related outputs;
Provide customer support; and
Comply with legal obligations and enforce these Terms.

We may also use anonymised or aggregated technical metadata (for example, architecture, file size, file format, non-behavioural characteristics) to improve performance, capacity planning, and statistics, provided that such data no longer identifies you or describes program behaviour.

In particular, you acknowledge that we may use third-party AI providers (such as OpenAI) as sub-processors to post-process and improve the decompiled code and related outputs for your specific requests. For this purpose, we may transmit portions of your uploads, decompiled code, and related text to such providers, under appropriate contractual and data protection safeguards.

We do not use your uploaded files, their behaviour, or your chat content to train, fine-tune, or evaluate our models beyond what is necessary for real-time processing of your requests. We rely on independent benchmarks and technical metadata for long-term evaluation and improvement.

8) Output & Intellectual Property

As between you and us, and subject to any third-party rights, applicable law, and the licences or restrictions applicable to the input materials, we assign to you any rights we may have in the Output generated for your request. We do not represent or warrant that the Output is free of third-party rights or that you may lawfully use, reproduce, distribute, or publish it in any particular way. You are responsible for assessing and ensuring the lawfulness of your use of the Output, including with respect to copyright, licensing, trade secret, and reverse engineering rules.

We make no guarantees that the Output is correct, complete, compilable, or suitable for any particular purpose. Output may be wrong, misleading, incomplete, non-compilable, or nonsensical. You must review and test Output before relying on it. You should not rely on the Output for decisions without independent verification, especially in security-critical or safety-critical contexts.

The quality or usefulness of any particular Output does not, by itself, create a right to a refund or price reduction beyond the time-based rules described in these Terms.

9) Prohibited Uses

Using the Service to infringe intellectual property rights or violate licence terms.
Decompiling or reverse engineering software or systems for which you lack the necessary rights, licences, or legal basis.
Creating or distributing malware, or engaging in unlawful hacking, without a clear and lawful authorisation (such as a written penetration testing contract).
Circumventing security measures, or attempting unauthorised access to our Service or third-party systems.
Violating applicable laws, export controls, or sanctions regimes.
Automated scraping, abuse of rate limits, or bypassing technical or commercial usage restrictions.
Harassing, threatening, or harming others, or using the Service for abusive content.

10) Subscriptions, Billing & Price Changes

We currently offer monthly subscription plans; yearly plans may be added in the future.
Payment methods include PayPal and (in the future) recurring SEPA Direct Debit, as shown on the pricing page.
Subscriptions are billed at the beginning of each billing cycle and renew automatically unless cancelled in accordance with these Terms.
We may change prices in the future. Price changes take effect in the next billing cycle after at least 30 days’ notice, where legally required. If you do not agree to a price change, you may cancel your subscription before the new price takes effect.

11) Cancellations, Account Deletion & Refunds

You can cancel your subscription at any time via your account interface. When you cancel, we stop all future recurring charges for that subscription.
If you cancel within 14 days of the start of your current billing cycle, you are entitled to a refund for the unused portion of your subscription. The refund is reduced by the value of the days you have already used (“Wertersatz”): any part of a day is counted as a full day of use.
If you cancel more than 14 days after your billing cycle begins, you will not receive a refund for the current cycle. Your access to the Service will end immediately, and you will not be charged for future billing cycles.
Refunds are calculated solely on the basis of unused time according to these rules and are not linked to the quality, content, or success of any particular decompilation or Output.
Your access to the Service ends immediately after cancellation, including where a partial refund is granted for unused time.
If we detect unusual or abusive payment activity (for example, repeated chargebacks or disputes), we may freeze or permanently block your account and refuse future subscriptions, to protect our Service and community.
You may delete your account at any time. Account deletion is irreversible; your uploads and account-related data are permanently deleted, except for data we must retain to comply with German tax and commercial law (for example, invoice data).
If the Service cannot be provided for a significant period due to persistent availability or resource problems on our side, we may, at your explicit request, cancel your subscription early and provide a refund based on Wertersatz. Such refunds are discretionary and may affect your eligibility for future subscriptions, especially where we suspect abuse.

12) Right of Withdrawal (Consumers)

If you are a consumer in the EU/EEA, you may have a statutory right of withdrawal for certain digital contracts. By purchasing a subscription and starting to use the Service, you expressly request that we begin performance before the end of the withdrawal period. We provide the Service immediately after purchase.

We offer the time-based refund scheme described in Section 11 as a contractual remedy within the first 14 days of a billing cycle, applying Wertersatz (reduction by the value of the services already provided). After the 14-day period has expired, no further withdrawal-based refund claims exist for the current billing cycle, without prejudice to any mandatory consumer rights that cannot be excluded under applicable law.

13) Feedback

You may choose to provide feedback, suggestions, or ideas about the Service (“Feedback”). You grant us a non-exclusive, irrevocable, worldwide, royalty-free licence to use, copy, modify, and incorporate Feedback into our products and services without any obligation to you.

14) Modifications

We may modify, update, or discontinue parts of the Service at any time, for example to improve performance, security, or usability, or due to third-party changes. We may also update these Terms. Where required by law or where changes are material, we will provide notice in an appropriate form (for example, via the website or by email). Continued use of the Service after changes take effect constitutes acceptance of the updated Terms.

15) Privacy & Third-Party Services

Our Privacy Policy explains what personal data we collect and how we process it, including our use of third-party services such as Google, payment providers, hosting providers, and AI service providers (for example, OpenAI). By using the Service, you acknowledge that we process personal data in accordance with our Privacy Policy, as updated from time to time.

16) IP of DecompilerAI

We and our licensors own all rights, title, and interest in and to the Service, including the models, software, algorithms, user interface, documentation, and branding. Except for the limited rights expressly granted in these Terms, no rights or licences are granted to you by implication or otherwise.

17) Warranties & Disclaimers

The Service and all Outputs are provided on an “as is” and “as available” basis. To the fullest extent permitted by law, we exclude all warranties, whether express, implied, or statutory, including but not limited to implied warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement.

Decompilation and AI-assisted analysis are inherently uncertain. Output may be incomplete, inaccurate, non-compilable, or misleading, and may not reflect the original source code or intended behaviour. You are solely responsible for reviewing, testing, and validating any Output before using it. You should not rely on the Output for decisions without independent verification, especially in security-critical or safety-critical contexts.

18) Limitation of Liability

To the extent permitted by applicable law, we are not liable for any indirect, incidental, consequential, special, or punitive damages, or for any loss of profits, revenue, data, or business opportunities, arising out of or in connection with your use of the Service or Output.

Except for liability that cannot be limited or excluded under mandatory German law (for example, liability for intent, gross negligence, injury to life, body, or health), our aggregate liability arising out of or relating to the Service is limited to the total amounts you paid to us for the Service during the twelve (12) months preceding the event giving rise to the claim.

19) Indemnity (Business Users)

If you are a business, organisation, or other non-consumer user, you agree to indemnify and hold us harmless from and against any third-party claims, damages, liabilities, costs, and expenses (including reasonable legal fees) arising out of or in connection with (a) your Customer Data or use of Output, (b) your violation of these Terms, or (c) your infringement of any third-party rights.

20) Suspension & Termination

We may suspend or terminate your access to the Service, in whole or in part, if:

you materially violate these Terms or applicable law;
we are required to do so by law or by a court or authority;
your use of the Service creates a security risk, legal risk, or may adversely impact the Service or other users; or
you engage in fraud, abuse, or chargeback behaviours.

We will endeavour to provide reasonable notice where appropriate, but we may act without notice if immediate action is necessary to protect the Service or others.

21) Governing Law & Venue; Language

These Terms and any disputes arising out of or in connection with them are governed by the laws of the Federal Republic of Germany, without regard to conflict-of-law principles. If you are a merchant, a legal person under public law, or a special fund under public law, the exclusive place of jurisdiction is Wesseling, Germany. Mandatory consumer jurisdiction rules remain unaffected.

These Terms may be provided in multiple languages. In case of discrepancies, the English version prevails.

22) Miscellaneous

These Terms constitute the entire agreement between you and us regarding the Service and supersede any prior agreements on the same subject matter. If any provision of these Terms is found invalid or unenforceable, the remaining provisions will remain in full force and effect. Our failure to enforce any provision is not a waiver of our right to do so later.