CodeTrain

CodeTrain

CodeTrain is a local‑first, hands-on AI coding tutor that teaches developers by guiding them to write code in their own codebase step by step. It runs an agent on your machine, offers sandbox or repo modes, and provides team features (dashboards, onboarding journeys, SSO/SCIM, self‑host) for companies.

CodeTrain is coding software teams evaluate for coding. Use this page to review pricing, integration signals, and the best alternatives before you commit.

Freemium Enterprise 70/100
#30 in Coding (30 tools)
Just launched
Data reviewed Jul 21, 2026

Quick Overview

Best for: Coding

What it does

Coding software for decision-makers comparing workflow fit and alternatives.

Best fit

Coding

Pricing snapshot

Freemium from $0

Next step

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CodeTrain

CodeTrain is a local-first, hands-on tutor that teaches developers by making them type each line of code against their real codebase rather than supplying answers. It offers two primary modes: repo mode (edits land in your real branch) and sandbox mode (throwaway lessons). The system runs an agent locally (served on 127.0.0.1) so code stays on the developer's machine; managed plans send only short prompt snippets, and customers may use Bring-Your-Own-Key (Anthropic or Bedrock) so model calls go directly to their account. The product is aimed at individual developers and engineering teams, with team features such as onboarding journeys, dashboards, and enterprise options including SSO/SCIM, audit logs, and self-host/VPC.

A hands-on AI coding trainer that teaches developers on their own codebase, one small step at a time. AI writes the code. CodeTrain makes sure your engineers still understand it, and proves it.

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Key Features

Socratic tutor

An interactive tutor that breaks work into tiny steps, asks questions, nudges with hints, reviews what the developer wrote, runs tests, and avoids handing the final solution.

Repo mode and Sandbox mode

Repo mode applies edits to real branches so finished code integrates into the workflow; sandbox mode creates throwaway lessons based on provided code or prompts.

Local-first agent

An agent runs on 127.0.0.1 so the core tutor and the codebase remain local; on managed plans only small prompt snippets are sent off‑host.

Stepwise, production-focused lessons

Lessons are broken into tiny, type-every-line steps in a real editor with an instant Run button; failing code is used as a teaching moment.

Personal progress and spaced repetition

A small local profile tracks level, streaks, and recurring gaps, resurfacing concepts later; Pro syncs the profile across devices.

Team & enterprise features

Team dashboard for usage and progress, per-seat budgets, onboarding journeys, SSO/SCIM, audit logs, VPC/self-host options and SOC 2 for Enterprise.

Bring-your-own-key (BYOK)

Option to connect an Anthropic or Bedrock API key so model calls go directly to your account for security and cost control.

Pricing

Free Tier Available

Core tutor is free and open-source: sandbox mode with 10 sessions/month, local profile and streaks; no card required.

Free

$0
  • Sandbox mode
  • 10 sessions / month
  • Local profile + streaks
  • Open-source skill

Pro

From $24 / mo
  • Repo mode (real repos)
  • Fair-use sessions, zero setup
  • Cross-device profile sync
  • Optional bring-your-own-key

Team

$32 / seat / mo
  • Everything in Pro
  • Onboarding journeys (early access)
  • Team usage & progress dashboard
  • Per-seat budgets + central billing

Enterprise

Custom
  • SSO / SCIM, audit logs
  • VPC / self-host, SOC 2
  • Code never leaves your environment
  • Onboarding-ROI pricing (talk to sales)

Use Cases

New-hire onboarding

Configure a repo, standards, and a safe first task and run each new hire through an interactive journey to deliver an early win and ramp faster.

Skill retention & understanding

Ensure engineers actually understand the code they ship by forcing hands-on production of code and tracking what concepts they missed.

Developer training on real codebases

Teach developers on your own patterns, standards, and gotchas instead of generic exercises, using sandbox mode for safe experimentation.

Team performance & budgeting

Monitor who has completed lessons and concepts, control spend with per-seat budgets, and standardize training across teams.

Integrations

Anthropic (BYO key)

Connect your Anthropic API key so model calls go directly to your account.

AWS Bedrock (BYO key)

Option to connect a Bedrock API key so model calls go through your account.

GitHub

The free skill and agent are available on GitHub (the page states 'grab it on GitHub').

SSO / SCIM

Enterprise identity integrations for single sign-on and user provisioning.

Benefits

Improves developer understanding by requiring them to write each line and by using Socratic review rather than handing answers.
Reduces ramp time for new hires through interactive onboarding journeys configured for your repo and standards.
Helps keep code and sensitive data local (local-first agent, BYO key, enterprise self-host/VPC) to address security concerns.

Limitations

Beta status: CodeTrain is in beta and described as 'early and improving every week'.
Free plan limits: the free tutor helps one developer and the free tier includes 10 sandbox sessions/month; team features and repo mode require paid plans.
Some managed functionality sends short prompt snippets off-host unless you use Bring-Your-Own-Key or self-host options.

Frequently Asked Questions

Does my code get uploaded anywhere?
No. The agent runs on your machine and serves the UI on localhost; on the managed plan only short prompt snippets go to the model. With Bring-Your-Own-Key model calls go straight to Anthropic with your key, and nothing but a license check touches our servers.
Isn't this just ChatGPT explaining my code?
The opposite. Explainers do the work for you. CodeTrain makes you write every line, reviews it Socratically, runs your tests, and tracks what you didn't get so it can resurface it.
We already use Copilot / Cursor. Why this too?
Copilot/Cursor make your team faster at producing code. CodeTrain ensures the team still understands it, and provides ways to prove ramp and retention; they are complements, not competitors.
What does 'bring your own key' mean?
You connect your own Anthropic (or Bedrock) API key so your code and prompts go directly to the model on your account; CodeTrain provides the software, accounts, and dashboards.
Is there really a free version?
Yes. The core tutor is a free, open skill you can run today; paid plans add managed access, real repos, cross-device sync, and the team layer.

Getting Started

  1. 1 Start free: create an account and run the free open-source skill (no credit card required).
  2. 2 Point CodeTrain at your repo or choose sandbox mode to create a lesson/session.
  3. 3 Run a lesson: follow the stepwise tutor in your editor, type each line, use the instant Run button, and iterate; upgrade to Pro/Team for repo mode, profile sync, and team features as needed.

Support

email

Product feedback and questions: [email protected]

sales/demo

Talk to sales or book a team demo via the site ('Talk to sales', 'Book a team demo').

docs/FAQ

FAQ and product info are available on the website.

open source / GitHub

The free skill is open-source and available on GitHub (page states 'grab it on GitHub').

API

Available: No

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