kitio.aiBitDive vs CARBON by testers.ai
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. BitDive starts at See pricing page and CARBON by testers.ai starts at $49/mo. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Runtime context via MCP
- Before and after trace diffs
- Method-level observability
- Tests generated from traces
- Self-hosted deployment
- 12 free testing commands
- Exploratory and risk-based testing
- Accessibility checks
- Evidence-backed findings
- MCP server
- Regression test building
| Feature | BitDive | CARBON by testers.ai |
|---|---|---|
| Best for | Feeds real Java runtime traces to coding agents and turns them into tests | Open-source AI test manager that runs inside your coding agent |
| Category | Coding | Coding |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | $49/mo |
| Free plan | Yes | Yes |
| Made by | BitDive | testers.ai |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
BitDive starts at See pricing page and CARBON by testers.ai starts at $49/mo. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
2 plans
Developer Use
Free
- Full workflow for one developer
- No pricing gate to start
Company Rollout
Contact sales
- Private cloud or air-gapped
- Priority engineering support
- Custom integration work
4 plans
Core
Free
- MIT open source
- 12 testing commands
- Accessibility and exploration
Pro
$49/mo
- Deeper testing workflows
- Everything in Core
Team
$95/mo
- Per user
- Minimum 5 developers
- Email support
Enterprise
$195/mo
- Per user
- Minimum 5 developers
- Zoom support and customizations
Prices in USD, checked Nov 5, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
BitDive
- Free for individual developers
- Agents work from real execution data
- Generates regression tests from traces
- Java-focused
- Company rollout needs a sales conversation
- Requires instrumenting your application
CARBON by testers.ai
- Core edition is free and MIT licensed
- Works inside agents you already use
- Broad framework and tracker support
- Needs a coding agent to run
- Team plans require at least 5 developers
- Requires Node.js 22+ for MCP setup
Which one should you choose?
Choose BitDive if you want:
- Free for individual developers
- Agents work from real execution data
- Generates regression tests from traces
Watch out: java-focused.
Choose CARBON by testers.ai if you want:
- Core edition is free and MIT licensed
- Works inside agents you already use
- Broad framework and tracker support
Watch out: needs a coding agent to run.
BitDive vs CARBON by testers.ai FAQ
What is the difference between BitDive and CARBON by testers.ai?
BitDive: Feeds real Java runtime traces to coding agents and turns them into tests. CARBON by testers.ai: Open-source AI test manager that runs inside your coding agent. Both are coding tools.
Is BitDive or CARBON by testers.ai cheaper?
BitDive starts at See pricing page and CARBON by testers.ai starts at $49/mo. Check both pricing pages for current plans.
Do BitDive and CARBON by testers.ai have free plans?
BitDive: Yes. CARBON by testers.ai: Yes.
Who makes BitDive?
BitDive is made by BitDive.
Who makes CARBON by testers.ai?
CARBON by testers.ai is made by testers.ai.
Which should I choose, BitDive or CARBON by testers.ai?
Choose BitDive if you value free for individual developers and agents work from real execution data. Choose CARBON by testers.ai if you value core edition is free and mit licensed and works inside agents you already use.