What The Diff vs GitHub Copilot vs Qodo (Formerly Codium) vs Semgrep Assistant

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
What The Diff
vs
Competitor 1
GitHub Copilot
Competitor 2
Qodo (Formerly Codium)
Competitor 3
Semgrep Assistant
Compare
4 tools · best value per row highlighted
Your tool What The Diff
whatthediff.ai
Understand PRs at a glance
Remove
Competitor GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
Make main Remove
Competitor Qodo (Formerly Codium)
qodo.ai
Qodo's Rules System lets you define coding standards once—then those standards evolve alongside your codebase
Make main Remove
Competitor Semgrep Assistant
semgrep.dev
Semgrep Assistant, now documented as Semgrep Multimodal, is the AI layer of the Semgrep application security platform.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
2.8Kvisits/mo
637.9Mvisits/mo
276.5Kvisits/mo
—
MoM change
▲ 26.4%
▲ 3.7%
▲ 9.3%
—
6-month growth
+70.6%
+19.3%
-29.0%
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Global rank web
#8,346,680
#49
#170,528
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Avg. last 3 months
2.1K
629.7M
268.7K
—
Bounce rate lower is better
35%
36%
41%
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Pages / visit
1.5
5.9
2.4
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Visit duration
15s
6m 26s
49s
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Traffic sources
—
● Direct 83% · ● Referral 15%
● Direct 85% · ● Referral 11%
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What The DiffGitHub CopilotQodo (Formerly Codium)Semgrep Assistant
0159.5M318.9M478.4M637.9MWhat The Diff · 1.7KWhat The Diff · 1.2KWhat The Diff · 2.6KWhat The Diff · 1.7KWhat The Diff · 1.6KWhat The Diff · 2KWhat The Diff · 893What The Diff · 1.2KWhat The Diff · 2.2KWhat The Diff · 2.8KGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MQodo (Formerly Codium) · 615.8KQodo (Formerly Codium) · 609.3KQodo (Formerly Codium) · 596.7KQodo (Formerly Codium) · 389.5KQodo (Formerly Codium) · 422.6KQodo (Formerly Codium) · 409.8KQodo (Formerly Codium) · 276.6KQodo (Formerly Codium) · 253KQodo (Formerly Codium) · 276.5K1001K10K100K1M10M100M1BWhat The Diff · 1.7KWhat The Diff · 1.2KWhat The Diff · 2.6KWhat The Diff · 1.7KWhat The Diff · 1.6KWhat The Diff · 2KWhat The Diff · 893What The Diff · 1.2KWhat The Diff · 2.2KWhat The Diff · 2.8KGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MQodo (Formerly Codium) · 615.8KQodo (Formerly Codium) · 609.3KQodo (Formerly Codium) · 596.7KQodo (Formerly Codium) · 389.5KQodo (Formerly Codium) · 422.6KQodo (Formerly Codium) · 409.8KQodo (Formerly Codium) · 276.6KQodo (Formerly Codium) · 253KQodo (Formerly Codium) · 276.5KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
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Starting price
$19per month · free tier available
$4per month · free tier available
$30per month
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Free tier
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Free trial
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API access
–
–
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Plans
Free FreePro – 200k $19/mo
Free FreeTeam $4/moEnterprise $21/mo
Free Trial CustomPro Team $30/moEnterprise Custom
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Capabilities input → output
Input
Code
CodeText
Code
Code
Output
CodeText
Code
CodeText
CodeText
Skill level
Intermediate
Intermediate
Intermediate
Advanced
Categories
Development & CodeAI Code ReviewAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Development & CodeAI Code ReviewAI Coding AssistantAI Testing
Development & CodeAI Code ReviewAI Developer Tools
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
6
9
10
7
Code reviews
Coding
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GitHub pull requests
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Code explanations
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Changelogs
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Code autocompletion
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Code security
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Code security analysis
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Testing
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Agents
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Code quality
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–
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Code summaries
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–
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Code testing
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Coding in VS Code
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–
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Test cases
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Test creation
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–
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Unit tests
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–
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Vs code
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Vulnerability analysis
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Agent management
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Code analysis
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Code validation
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Debugging
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–
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Developer tools
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GitHub automation
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Terminal
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–
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
2
0
0
Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.