The verdict
Second.dev appears in 1 AI-ranked category.
Focuses specifically on high-friction frontend and backend framework migrations (such as AngularJS to modern Angular/React) using dedicated, pre-built AI modules that guide the agentic workflow to ensure high-fidelity pull requests.
Where Second.dev falls short, per the models
- Gemini It is heavily bound to its pre-defined migration modules, making it unsuitable for general-purpose code cleaning, daily refactoring, or unsupported legacy stack transitions.
What changed in the models’ minds
GeminiJul 12 → Jul 13 poll
- Newframework migrations“high-friction frontend and backend framework migrations”
- Newdedicated pre-built AI modules“dedicated, pre-built AI modules”
- Newunsuitable for general-purpose refactoring“unsuitable for general-purpose code cleaning, daily refactoring, or unsupported legacy stack transitions”
- Droppeddependency resolution and directory restructuring
+1 more change
Top alternatives per the models: Moderne · AWS Transform · Claude Code · GitHub Copilot App Modernization
Watch Second.dev
Boards re-poll weekly and the models change their minds. One short email only when Second.dev's standing moves — a rank change, a rival overtaking, or new reasoning from the models. Nothing otherwise.
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Second.dev ranks #10 for best ai code migration tool by AI-model consensus. Put the badge in your README, docs or site — it updates automatically as the models re-rank.
[](https://modelsagree.com/best/best-ai-code-migration-tool?utm_source=badge&utm_medium=embed&utm_campaign=badge-second-dev)<a href="https://modelsagree.com/best/best-ai-code-migration-tool?utm_source=badge&utm_medium=embed&utm_campaign=badge-second-dev"><img src="https://modelsagree.com/badge/second-dev.svg" alt="Second.dev — ranked #10 for Best AI code migration tool by AI models on ModelsAgree" height="28"></a>Rankings are computed from what the models answer, re-polled on demand · raw reasoning shown verbatim · methodology