Common signs: slow onboarding and knowledge in one person's head. Usual causes: no developer documentation. What we do: write architecture, setup and module docs from your code. What you get: docs that get new developers productive fast.
Our codebase documentation service writes the developer docs your project is missing: an architecture overview, a setup guide that works, descriptions of each module, key data flows and diagrams. A Codersarts engineer writes them from your code, so new developers and vendors can get productive in days, not weeks. Fixed price from $199 with 1-day delivery.
Codebase Documentation at a Glance
Item | Details |
|---|---|
Starting price | $199 for a small codebase |
Delivery | 1 day; 3 days for larger codebases |
Docs | README, architecture overview, setup guide, module docs, data flows |
Diagrams | Architecture and data flow diagrams in Mermaid or your tool |
Formats | Markdown in the repository, Notion or Confluence |
What you get | Faster onboarding and less dependency on one person |
Revisions | One revision round included |
What Is Codebase Documentation?
Codebase documentation explains how a software project is built for the developers who work on it: how to set it up, how the parts fit together, where key logic lives and how data flows. It reduces onboarding time and the risk of knowledge living only in one person's head.
Signs You Need Developer Docs
New developers take weeks to become productive
Only one person understands parts of the system
A developer or agency is leaving
Setup steps live in chat history
Vendors keep asking the same questions
Why Docs Don't Exist
Shipping first
Docs postponed for features.
Small teams
Everyone just knew.
Turnover
Knowledge left with people.
Docs rot
Old docs became wrong and were ignored.
Quick Checks You Can Try First
Ask a new person to set up the project and note where they get stuck.
Write a one-paragraph description of each main folder.
Draw a simple diagram of the main services.
Keep docs in the repository next to the code.
If the problem remains, our engineers take it from there.
How We Document Your Codebase
Explore. We read the code and run the project.
Setup guide. We write and test setup steps.
Architecture. We describe components and draw diagrams.
Modules. We document key modules and logic.
Data flows. We explain how data moves through the system.
Review. We walk your team through the docs.
What You Get
A working setup guide
An architecture overview with diagrams
Module and key logic descriptions
Data flow documentation
A walkthrough session
Example result (illustrative)
A startup's original developer was leaving, and setup took a new hire four days. We wrote a tested setup guide, an architecture overview with diagrams and module notes in the repository. The next developer was running the project in under an hour.
What Is Included and Not Included
Included | Not included |
|---|---|
One codebase | Many repositories (priced per repository) |
Setup, architecture and module docs | Functional specs (separate task) |
Diagrams | Code changes |
One revision round | Ongoing doc updates |
Pricing for Codebase Documentation
Package | Best for | Starting at | Delivery |
|---|---|---|---|
Small codebase | Setup guide and overview | $199 | 1 day |
Full documentation | Architecture, modules and data flows | $599 | 3 days |
Large system | Many services | Custom quote | Agreed with you |
You get a fixed quote after we review your setup. You approve the scope before any payment.
Who This Is For
Teams losing a key developer
Startups hiring or onboarding vendors
Companies taking over a codebase
Agencies handing over projects
What We Need From You
Repository access
How the project is deployed
Areas that are hardest to understand
Where docs should live
Code and data privacy
We sign an NDA on request, work with the least access needed, and never keep copies of your data after delivery. You own all code, configuration and notes.
Key Terms Explained
README: the main document at the top of a repository
Architecture overview: a description of how system parts fit together
Data flow: how data moves through the system
Onboarding: getting a new developer productive
Common Mistakes We Avoid
Writing docs nobody can find
Documenting every line instead of the big picture
Setup guides that were never tested
Docs outside the repository that go stale
Need More Than One Task?
Taking over a whole project? See Codebase Takeover. Or use Prepaid Developer Hours to cover several tasks from one prepaid balance.
Related Tasks
Write Specs From Existing Code for functional docs
Architecture Review for design advice
Dockerize Your App to simplify setup
Frequently Asked Questions
Where should docs live?
Usually in the repository as Markdown, so they change with the code.
Will you document every function?
No. We focus on what developers need: setup, structure, key logic and flows.
Can you add diagrams?
Yes, as Mermaid diagrams in Markdown or in your preferred tool.
Is this useful for handovers?
Yes. It's one of the most useful things to have before a developer leaves.
Stop Depending on One Person's Memory
Share your repository, and a Codersarts engineer will write docs that get developers productive fast.