# AI Code Editors: the tools companies use

136 companies on usedby use at least one of the 3 tools in this category with a public customer. Cursor leads with 97 companies. Counts are of companies on usedby, not of the whole market. Latest check 2026-10-08: 144 of 145 public lines checked.

> Native AI code editors (IDEs) designed for pair-programming

Family: [Engineering & Data](https://www.usedby.ai/tools/category/engineering-data.md)

## Ranking

Public customers count every public line, job-post signals included; ties share a rank.

| Rank | Tool | Public customers | Confirmed | Observed | Signals |
|---|---|---|---|---|---|
| 1 | [Cursor](https://www.usedby.ai/tools/cursor.md) | 97 | 22 | 64 | 11 |
| 2 | [Replit](https://www.usedby.ai/tools/replit.md) | 31 | 22 | 8 | 1 |
| 3 | [Warp](https://www.usedby.ai/tools/warp.md) | 17 | 2 | 15 | 0 |

---
Source: https://www.usedby.ai/tools/category/ai-code-editors · How we check: https://www.usedby.ai/methodology