CodeGPT vs Functionize vs Diffblue Cover vs Windsurf

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

Your tool
CodeGPT
vs
Competitor 1
Functionize
Competitor 2
Diffblue Cover
Competitor 3
Windsurf
Compare
4 tools · best value per row highlighted
Your tool CodeGPT
codegpt.co
ChatGPT in your code editor
Remove
Competitor Functionize
functionize.com
Functionize is an agentic quality platform whose Studio product builds, runs and maintains tests against your live application.
Make main Remove
Competitor Diffblue Cover
diffblue.com
Diffblue Cover, now offered as the Diffblue Testing Agent, generates, verifies and fixes unit tests autonomously across enterprise codebases.
Make main Remove
Competitor Windsurf
windsurf.com
Windsurf, which now appears on the web as Devin Desktop, is a desktop code editor that doubles as a control room for coding agents.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
188.3Kvisits/mo
—
—
29.6Kvisits/mo
MoM change
▲ 0.8%
—
—
▲ 7.8%
6-month growth
-37.2%
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+122.1%
Global rank web
#251,957
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#1,172,623
Avg. last 3 months
196.6K
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—
26.9K
Bounce rate lower is better
43%
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—
50%
Pages / visit
1.9
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1.3
Visit duration
38s
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—
13s
Traffic sources
● Direct 58% · ● Referral 42%
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CodeGPTFunctionizeDiffblue CoverWindsurf
074.9K149.9K224.8K299.7KCodeGPT · 267.5KCodeGPT · 278.8KCodeGPT · 284.1KCodeGPT · 233.4KCodeGPT · 299.7KCodeGPT · 277.1KCodeGPT · 262.2KCodeGPT · 214.6KCodeGPT · 186.8KCodeGPT · 188.3KWindsurf · 16KWindsurf · 24.3KWindsurf · 15.7KWindsurf · 13.3KWindsurf · 25.4KWindsurf · 29.3KWindsurf · 23.6KWindsurf · 27.5KWindsurf · 29.6K10K100K1MCodeGPT · 267.5KCodeGPT · 278.8KCodeGPT · 284.1KCodeGPT · 233.4KCodeGPT · 299.7KCodeGPT · 277.1KCodeGPT · 262.2KCodeGPT · 214.6KCodeGPT · 186.8KCodeGPT · 188.3KWindsurf · 16KWindsurf · 24.3KWindsurf · 15.7KWindsurf · 13.3KWindsurf · 25.4KWindsurf · 29.3KWindsurf · 23.6KWindsurf · 27.5KWindsurf · 29.6KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Paid
Freemium
Starting price
$9per month · free tier available
$20per month · free tier available
$1,500per month
$20per month · free tier available
Free tier
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Free trial
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API access
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Plans
Free FreeProfessional $9/moTeams $27/moEnterprise Custom
Free FreeGrowth $20/moScale $100/moEnterprise Custom
Starter package $1,500Enterprise Custom
Free FreePro $20/moMax $200/moTeams $80/mo
Capabilities input → output
Input
CodeText
TextWeb pages
Code
CodeText
Output
Code
Data
Code
Code
Skill level
Intermediate
Advanced
Advanced
Advanced
Categories
Development & CodeAI Coding Assistant
Development & CodeAI Testing
Development & CodeAI Testing
Development & CodeProductivity & OfficeAI AgentAI Coding Assistant
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
3
7
9
8
Agents
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Coding
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Test automation
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Test creation
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Test generation
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Testing
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Debugging
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GitHub pull requests
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Test cases
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Agent management
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Code autocompletion
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Unit tests
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Code testing
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Developer tools
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Code reviews
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MCP
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Website testing
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 1
Saves
0
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0
Reviews
0
0
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0
Prompts
0
0
0
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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.