Free trial
A free plan is available after sign up with limited functions and a capped number of lines of code. Once the limit is reached, a paid subscription is required. The site also allows trying an example without logging in.
Learn moreDocComment
AI code explanations and doc comments without touching your source files
Intermediate
What is DocComment?
DocComment generates plain language explanations and inline doc comments for pasted code in Java, Python, Go, JavaScript, TypeScript, C#, and PHP. Sidecar explanations sit beside the source without modifying it, while an optional inline mode writes compliant comments. Useful for reading AI generated or undocumented code.
DocComment is a web based assistant that turns unfamiliar or poorly documented source code into readable, structured explanations. Paste a file into the editor, pick the language, and the tool returns two layers of output: broad descriptions of classes, interfaces, methods and functions, plus finer notes attached to the three to five lines currently in view. It supports Java, Python, Go, JavaScript, TypeScript, C# and PHP. The engine combines code structure analysis with large language models, splitting input into smaller parts and explaining each one in plain language. A distinguishing design choice is the sidecar model. Many copilots write comments straight into the file, which modifies the working copy and can create noise in diffs. DocComment keeps explanations beside the code, so nothing changes unless the user explicitly chooses Inline Doc Comments, which produces automated comments for teams that must meet documentation requirements. Sidecar storage also means the same explanation can be retrieved later and across devices. The tool is aimed at developers who inherit undocumented repositories, review AI generated code, or onboard into a codebase quickly. It works in tandem with generators such as GitHub Copilot and Cursor: those tools produce code, and DocComment explains it to the reader. Teams can also use it to standardise documentation practice, with a Git integration and IDE plugin planned for the Silver tier. Compared with general coding assistants, the scope here is narrower and deeper on explanation rather than generation. The web app requires no log in for basic experimentation, and a signed up free allowance covers a limited number of lines before a paid plan is needed. Pricing separates single file use from repository level work, and annual billing stretches the quota across the year instead of resetting it monthly. Smaller shops that only need occasional clarity on a snippet can stay on Bronze; groups working across a repo are pointed at Silver.
How do you use DocComment?
1Open the DocComment homepage
Load doccomment.com to see the editor and the example files. Nothing needs to be installed and no account is required to try the sample.
2Paste your code
Paste the file or snippet you want to understand into the code editor on the page. The output will describe classes and functions as well as the finer blocks around your current view.3Pick the language
Select the matching language from the list: Java, Python, Go, JavaScript, TypeScript, C#, or PHP. The analysis relies on structure detection, so the correct choice affects accuracy.4Generate the doc comments
Click Start Doc Comment. The tool processes the pasted code and returns human friendly explanations in seconds, shown as sidecar notes that do not alter your file.5Choose inline if compliance requires it
Use the Inline Doc Comment button when comments must live inside the source, for example to satisfy team documentation standards. Otherwise keep the sidecar version for consistency across devices.6Sign up for ongoing use
Create an account to access the free allowance and to see plan options. Paid tiers add unlimited explanation storage and higher monthly line quotas.
Pros and cons
Pros
- Explains code at two levels: whole classes and methods, plus line level contextAI
- Sidecar output leaves the original file untouched, so diffs stay cleanAI
- Supports seven mainstream languages including Go, C#, and PHPAI
- Free tier after sign up and a no log in demo lower the barrier to testingAI
- Positioned as a complement to Copilot and Cursor rather than a replacementAI
Cons
- Git integration and IDE plugin are not available yet; they sit behind the Silver waitlistAI
- Monthly quota does not carry over, so unused lines are lost at the end of the periodAI
- No public API, which rules out automated documentation pipelinesAI
- Only email support is listed; no chat or community channel is mentionedAI
- Yearly plan trades monthly flexibility for a pooled quota, which suits bursty use but not steady teamsAI
How much does DocComment cost?
Pricing
Two paid tiers. Bronze is $9 per month for single code files and includes 50K standard lines of code per month, unlimited explanation storage, and email support. Silver is $19 per month for Git repositories and raises the quota to 100K lines, adding Git integration and an IDE plugin. Annual billing offers 16 percent off and spreads the quota across the year. Monthly quota does not roll over.
Learn moreSupport
Email support is included on both paid plans. No chat, phone, or community support channel is listed.
Integrations
Git integration and an IDE plugin appear on the Silver plan but are waitlisted rather than live. Major editors such as VSCode and Cursor are described as planned, and no public API is mentioned.
Learn moreFeatures
Code comments at two granularities (class level and 3 to 5 line level), non-intrusive sidecar explanations that leave source files unchanged, inline doc comments for compliance, unlimited explanation storage, and support for Java, Python, Go, JavaScript, TypeScript, C#, and PHP. Git integration and an IDE plugin are listed for the Silver plan but currently gated by a waitlist.
Frequently asked questions about DocComment
How much does DocComment cost?
Two paid tiers. Bronze is $9 per month for single code files and includes 50K standard lines of code per month, unlimited explanation storage, and email support. Silver is $19 per month for Git repositories and raises the quota to 100K lines, adding Git integration and an IDE plugin. Annual billing offers 16 percent off and spreads the quota across the year. Monthly quota does not roll over.Does DocComment offer a free trial?
A free plan is available after sign up with limited functions and a capped number of lines of code. Once the limit is reached, a paid subscription is required. The site also allows trying an example without logging in.How do you use DocComment?
The walkthrough on this page covers 6 steps: 1. Open the DocComment homepage 2. Paste your code 3. Pick the language 4. Generate the doc comments 5. Choose inline if compliance requires it 6. Sign up for ongoing use.What platforms does DocComment support?
DocComment is available on Web App.What does DocComment integrate with?
Git integration and an IDE plugin appear on the Silver plan but are waitlisted rather than live. Major editors such as VSCode and Cursor are described as planned, and no public API is mentioned.What are the limitations of DocComment?
Git integration and IDE plugin are not available yet; they sit behind the Silver waitlist. Monthly quota does not carry over, so unused lines are lost at the end of the period. No public API, which rules out automated documentation pipelines.
Status
StatusActive
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Added10/21/2026
Platforms
Web App
Pricing
FreemiumSubscription
