head to head · open source
opcode vs ultimatepp
opcode has 22,423 GitHub stars, 1,710 forks, 332 open issues and last shipped 1 months ago. ultimatepp has 995 stars, 144 forks, 38 open issues and last shipped 2 days ago. opcode leads on adoption by 2,154% (22,423 vs 995 stars). opcode is written in TypeScript under AGPL-3.0; ultimatepp is written in C++ under BSD-2-Clause. opcode has attracted 8% as many forks as stars, ultimatepp 14%. ultimatepp was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ide), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| opcode | ultimatepp | |
|---|---|---|
| GitHub stars | ★ 22K | ★ 995 |
| License | AGPL-3.0 | BSD-2-Clause |
| Written in | TypeScript | C++ |
| Last push | 2026-09-18 | 2026-10-23 |
| Forks | ⑂ 1.7K | ⑂ 144 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick opcode if
- You weight community size — 22K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick ultimatepp if
- You want the ultimatepp feature set and don't need the biggest community
- You prefer the BSD-2-Clause license terms
- Your stack matches C++
- You evaluated both and ultimatepp fits your workflow better
About opcode
opcode A powerful GUI app and Toolkit for Claude Code Create custom agents, manage interactive Claude Code sessions, run secure background agents, and more. [!TIP] ⭐ Star the repo and follow @getAsterisk on X for early access to asteria swe v0 . [!NOTE] This project is not affiliated with, endorsed by, or sponsored by Anthropic. Claude is a trademark of Anthropic, PBC. This is an independent developer project using Claude. 🌟 Overview opcode is a powerful desktop application that transforms how you interact with Claude Code. Built with Tauri 2, it provides a beautiful GUI for managing your Claude Code sessions…
read the full opcode overview →
About ultimatepp
U++ Introduction U++ is a C++ cross platform rapid application development framework focused on programmers productivity. It includes a set of libraries (GUI, SQL, Network, etc.), with an integrated development environment. Rapid development is achieved by the smart and aggressive use of C++ rather than through fancy code generators. In this respect, U++ competes with popular scripting languages while preserving C/C++ runtime characteristics. The U++ integrated development environment, TheIDE, introduces modular concepts to C++ programming. It features BLITZ build technology to speedup C++ rebuilds by up to 4…
read the full ultimatepp overview →
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Frequently asked questions
Is opcode or ultimatepp more popular?
opcode has 22,423 GitHub stars and ultimatepp has 995. opcode has the larger community by that measure.
Are opcode and ultimatepp free?
Both are open source. opcode is licensed under AGPL-3.0 and ultimatepp under BSD-2-Clause. Neither carries a licence fee.
What is the difference between opcode and ultimatepp?
opcode is written in TypeScript and ultimatepp in C++. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, opcode or ultimatepp?
Choose opcode if you want the larger community (22,423 stars) or its AGPL-3.0 licence terms. Choose ultimatepp if its feature set, stack or BSD-2-Clause licence fits better. Both are self-hostable.