Best act101 Alternatives for Code Review
30 AI tools that can replace act101 for reviewing code, ranked by how closely they match. The percentage is a match score, not a popularity score.
Replacing: act101 — Build bigger, better, faster, for less.Input: code · Output: code
1
77%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity3/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
2
79%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals8/10
- Feature description similarity2/20
Shared goals 2 of the 2 we tag act101 for
Software DevelopmentCode Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
3
Qodo's Rules System lets you define coding standards once—then those standards evolve alongside your codebase
Input: code · Output: text, code
Free planFrom $30/mo
76%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity2/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Also tagged for
CodingSoftware Testing
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
4
Devin Review is the fastest way to truly understand code—especially when it changes
Input: code, web pages · Output: text
Free planFrom $500/mo
75%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity1/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
5
75%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity1/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
6
AI code reviewer that never takes a day off
Input: code · Output: text, code
Free planFrom $12/mo
76%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity3/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
7
Claude Code Security remains in research preview—waitlist access only
Input: code · Output: text, code
Free planFrom $17/mo
74%Partial replacement — covers the main need with gaps
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity1/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
8
You'll need developers who actually understand the security feedback DryRun Security generates
Input: code · Output: text
Free plan
76%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity3/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
9
CodeThreat's AI agents learn your codebase
Input: code · Output: text
Free planFrom $39/mo
75%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity1/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
10
AI that writes tests so you don't have to avoid them
Input: code · Output: text, code
Free planFrom $19/mo
76%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity2/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Also tagged for
CodingSoftware Testing
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
11
LinearB gitStream is a pull request automation and AI code review product from LinearB.
Input: code · Output: text
Free trialFrom $29/moTeams
79%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals8/10
- Feature description similarity2/20
Shared goals 2 of the 2 we tag act101 for
Software DevelopmentCode Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
12
Semgrep Assistant, now documented as Semgrep Multimodal, is the AI layer of the Semgrep application security platform.
Input: code · Output: text, code
APITeams
79%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals8/10
- Feature description similarity1/20
Shared goals 2 of the 2 we tag act101 for
Software DevelopmentCode Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
13
Code review automation that catches what human reviewers miss
Input: text · Output: code, apps
Free planFrom $7.99/moTeams
75%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity1/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Also tagged for
Workflow Automation
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
14
Most code review tools scan diffs—then stop
Input: code · Output: text
Free planFrom $29/mo
75%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity1/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
15
Snyk Code is a static application security testing product that scans the source code a team writes, flags vulnerabilities as they appear and proposes fixes that can be applied automatically.
Input: code · Output: text, code
Free planFrom $25/moTeams
78%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals8/10
- Feature description similarity0/20
Shared goals 2 of the 2 we tag act101 for
Software DevelopmentCode Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
16
Graphite is an AI code review platform for teams that work on GitHub.
Input: code · Output: text, code
Free planFrom $20/moBrowser extensionTeams
76%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity2/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
17
Greptile is an AI code reviewer that builds a graph of your repository, covering files, functions and dependencies, and then sends a swarm of agents to review each pull request.
Input: code · Output: text
Free planFrom $30/moTeams
76%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity2/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
18
It reviews vulnerabilities found in code and proposes automated fixes directly in GitHub, so developers can write secure code at scale instead of leaving security tickets in a backlog.
Input: code · Output: code
Free trialFrom $30/moTeams
75%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity1/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
19
Cursor Bugbot is an AI code review service from the makers of the Cursor editor.
Input: code · Output: text, code
Free trialFrom $20/moTeams
75%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity2/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
20
Korbit is an AI code reviewer that works directly inside pull requests on GitHub, GitLab and Bitbucket.
Input: code · Output: text
Free trialFrom $12/moTeams
75%Strong alternative
00
How the score adds up
- Built for Code Review (its core category)70/70
- Shares act101's other goals4/10
- Feature description similarity1/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
21
56%Limited overlap · same core category as act101
00
How the score adds up
- Offers Code Review as a secondary capability42/70
- Shares act101's other goals10/10
- Feature description similarity4/20
Shared goals 2 of the 2 we tag act101 for
Software DevelopmentCode Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
22
54%Limited overlap · same core category as act101
00
How the score adds up
- Offers Code Review as a secondary capability42/70
- Shares act101's other goals10/10
- Feature description similarity2/20
Shared goals 2 of the 2 we tag act101 for
Software DevelopmentCode Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
23
Traditional security tools won't scan your codebase for auth bypasses or business logic flaws that only emerge when you understand how the entire application actually works
Input: code · Output: text, code
Free planFrom $1,000/mo
54%Limited overlap · same core category as act101
00
How the score adds up
- Offers Code Review as a secondary capability42/70
- Shares act101's other goals10/10
- Feature description similarity2/20
Shared goals 2 of the 2 we tag act101 for
Software DevelopmentCode Review
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
24
Your AI pair programmer that actually knows the codebase
Input: text, code · Output: code
Free planFrom $4/mo
51%Limited overlap
00
How the score adds up
- Offers Code Review as a secondary capability42/70
- Shares act101's other goals4/10
- Feature description similarity6/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Also tagged for
CodingAI Agents
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
25
Continue is an open-source AI coding agent that was built by a community of developers and has since been acquired by Cursor.
Input: text, code · Output: code
Free plan
51%Limited overlap
00
How the score adds up
- Offers Code Review as a secondary capability42/70
- Shares act101's other goals4/10
- Feature description similarity5/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Also tagged for
Coding
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
26
A dedicated coding agent that writes and runs code for you
Input: text, code · Output: code
Free planFrom $20/mo
48%Limited overlap
00
How the score adds up
- Offers Code Review as a secondary capability42/70
- Shares act101's other goals4/10
- Feature description similarity2/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Also tagged for
Coding
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
27
Code editor that actually understands your codebase
Input: text, code · Output: code
Free planFrom $20/mo
48%Limited overlap
00
How the score adds up
- Offers Code Review as a secondary capability42/70
- Shares act101's other goals4/10
- Feature description similarity2/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Also tagged for
Coding
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
28
Verdent AI operates as a multi-agent coding system where several AI assistants work in parallel rather than sequentially
Input: text, code · Output: code, apps
Free planFrom $5/mo
48%Limited overlap
00
How the score adds up
- Offers Code Review as a secondary capability42/70
- Shares act101's other goals4/10
- Feature description similarity2/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Also tagged for
Coding
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
29
AWS coding assistant formerly known as CodeWhisperer
Input: text, code · Output: code
Free planFrom $19/mo
47%Limited overlap
00
How the score adds up
- Offers Code Review as a secondary capability42/70
- Shares act101's other goals4/10
- Feature description similarity2/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Also tagged for
Coding
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
30
46%Limited overlap
00
How the score adds up
- Offers Code Review as a secondary capability42/70
- Shares act101's other goals4/10
- Feature description similarity1/20
Shared goals 1 of the 2 we tag act101 for
Code Review
Also tagged for
CodingAI Agents
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
Can it really replace act101 for reviewing code? Vote on each alternative — no account needed. Votes gently reorder the list; they never change the match score.
Missing an alternative for reviewing code? Suggest it
At a glance: top act101 alternatives for Code Review
| Tool | Match | Input | Output | Pricing | Free plan | Rating | Category |
|---|---|---|---|---|---|---|---|
| CodeRabbit | 77% | code | text, code | From $24/mo | Yes | — | AI Code Review |
| What The Diff | 79% | code | text, code | From $19/mo | Yes | — | AI Code Review |
| Qodo (Formerly Codium) | 76% | code | text, code | From $30/mo | Yes | — | AI Code Review |
| Devin Review | 75% | code, web pages | text | From $500/mo | Yes | — | AI Code Review |
| Kilo Code Reviewer | 75% | code | text | From $15/mo | Yes | — | AI Code Review |
| Sourcery | 76% | code | text, code | From $12/mo | Yes | — | AI Code Review |
Frequently asked
What is the best act101 alternative for reviewing code?
CodeRabbit (77% match) is the closest alternative to act101 for reviewing code: Automated code review that matters. What The Diff (79% match) and Qodo (Formerly Codium) (76% match) come next.
Is there a free alternative to act101 for reviewing code?
Yes. 25 of the 30 ranked alternatives have a free plan or free tier, including CodeRabbit, What The Diff, Qodo (Formerly Codium).
How is the match percentage calculated?
It measures how much of act101's job a tool can take over for reviewing code: shared core category, how many of the same use cases it covers and how similar its feature set is. Popularity and ratings never change the percentage; they only break ties in the order. Lists are recomputed nightly and reviewed by editors for the most-visited tools.
How this list is ranked
The match score measures how much of act101's job each tool can take over when the goal is reviewing code: shared core category, how many of the same use cases it covers, and how similar its feature set is. Popularity and ratings do not change the score; they only break ties in the order.
Lists are recomputed nightly from the live catalog and reviewed by our editors for the most-visited tools. Sponsored placements are marked and sit outside the ranking.