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Jcode

YC S26

San Francisco, US · Founded 2026 · 1 employees · 1 known investors

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Jcode is an open-source terminal coding agent written in Rust, designed for low memory use and fast startup so developers can run many concurrent agent sessions. It includes features such as self-modifying source code, background task tools, semantic memory, and its own uncontaminatable coding benchmarks.

Also known as Solo Systems Corp. · Solo Labs

AI & Machine LearningConsumerDeveloper ToolsSaaSArtificial IntelligenceUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (S26)

Jcode was founded in 2026 by Jeremy Huang.

JHJeremy Huang
Jeremy HuangCEOFounder of Jcode, a 21-year-old developer with a GitHub profile at github.com/1jehuang.

Investors · 1

Related companies · 5

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Companies working in the same space as Jcode.

Legal entities · 1

corporate structure
Solo Systems Corp.

In the news

Jcode: High-performance coding agentsycombinator.com · Aug 2026Jcode: The Coding Agent That Raises the Skill Ceiling, vs. OpenCode and Pigrigio.org · Aug 2026

Frequently asked questions

What does Jcode do?
Jcode is an open-source terminal coding agent written in Rust, designed for low memory use and fast startup so developers can run many concurrent agent sessions. It includes features such as self-modifying source code, background task tools, semantic memory, and its own uncontaminatable coding benchmarks.
Who founded Jcode?
Jcode was founded by Jeremy Huang in 2026.
Who are Jcode's investors?
Jcode's investors include Y Combinator.
Where is Jcode headquartered?
Jcode is headquartered in San Francisco, US.