AgentIndex icon
AgentIndex
jcode logo
jcode
★ 21.3k
vs
Codewhale logo
Codewhale
★ 41.1k

jcode vs Codewhale

jcode: jcode is a coding agent harness written in Rust, built to run dozens of agents in parallel with little RAM and near-instant startup. Agents in the same repo are coordinated by a server that notifies them of conflicting edits and lets them message each other or spawn their own swarms.; Codewhale: Codewhale is an open-source coding agent for the terminal, written in Rust, that reads the repository, edits files and runs commands until a task is done. It ships more than 40 built-in providers plus any OpenAI-compatible endpoint and local runtimes like Ollama, vLLM and SGLang, defaulting to DeepSeek. Plan, Work and Operate modes combine with Ask, Auto-Review and Full Access permissions; /receipts lists files changed, commands run and web/MCP calls, and /undo and /restore roll work back.

01

TL;DR

jcode logo
jcodeCode Assistant · ★ 21.3k

Run many coding agents in parallel on one machine

Read jcode full review →
Codewhale logo
CodewhaleCode Assistant · ★ 41.1k

A terminal coding agent on cheaper or local models

Read Codewhale full review →
02

Side-by-Side Comparison

Field
jcode logojcode
Codewhale logoCodewhale
Category
Code Assistant
Code Assistant
Stars
★ 21.3k
★ 41.1k
License
MIT
MIT
Install Command
curl -fsSL https://jcode.sh/install | bash
curl -fsSL https://codewhale.net/install.sh | sh
Updated
1d ago
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
coding-agent, rust, cli
coding-agent, terminal, rust
03

Features

jcode logojcode
01About 3.3 MB of RAM per additional headless session in the project's benchmark
02Swarm mode with edit notifications and agent-to-agent messaging
03Agents can spawn their own teammates as workers
04Claude OAuth, OpenAI Codex OAuth and other providers
05Self-dev mode where the agent edits, builds and reloads its own binary
Codewhale logoCodewhale
0140+ built-in providers, any OpenAI-compatible endpoint, and local models via Ollama, vLLM or SGLang
02Plan, Work and Operate modes with Ask, Auto-Review and Full Access permissions
03/receipts audit trail of files, commands, web and MCP calls and approvals
04/undo and /restore to roll back a request or the whole workspace
05codewhale exec for headless runs in scripts and CI, with an optional workspace sandbox
04

Use Cases

jcode logojcode
↳Run many coding agents in parallel on one machine
↳Let several agents work in one repository without clobbering each other
↳Customize a coding agent by having it modify its own source
Codewhale logoCodewhale
↳A terminal coding agent on cheaper or local models
↳Fixing failing tests or refactoring with an audit trail of what changed
↳Running agent tasks in CI with codewhale exec
05

Best For

jcode logojcode
Most Popular
Codewhale logoCodewhale
Most Popular
FAQ

FAQ

What is the difference between jcode and Codewhale?
Both jcode and Codewhale are in the Code Assistant category. jcode has 21.3k stars, while Codewhale has 41.1k stars.
Which is better, jcode or Codewhale?
The best choice depends on your use case. Choose jcode if Run many coding agents in parallel on one machine, and Codewhale if A terminal coding agent on cheaper or local models.
Is jcode free or open source?
Yes, jcode is open source on GitHub (MIT).
Is Codewhale free or open source?
Yes, Codewhale is open source on GitHub (MIT).
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Related

Alternatives to jcode →Alternatives to Codewhale →jcode details →Codewhale details →