
The AI coding agent for building ambitious software
The AI coding agent for building ambitious software
crystl records 20,829 monthly visits with +104.8% month-over-month growth and Freemium pricing. jcode records 18,136 monthly visits with -22.7% growth and Freemium, Contact for Pricing pricing.

Open-source Rust coding agents for your terminal, built for parallelism
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | crystl.dev | jcode.sh |
| Pricing Model | Freemium | Freemium, Contact for Pricing |
| Monthly Visits | 20.83K (20,829) | 18.14K (18,136) |
| MoM Traffic Delta | +10.66K (+104.8%) | -5.33K (-22.7%) |
| Primary Market & Share | 🇺🇸 United States (70.9%) | 🇺🇸 United States (66.1%) |
| Direct Visits / mo | 8.65K | 11.87K |
| User Rating | 4.4 | 4.2 |
| Supported Platforms | Website | Website |

A multitasking macOS terminal and agent manager for orchestrating AI coding agents
Run several CLI agents in one project simultaneously, each isolated in its own git worktree and branch so sessions never collide.
Anoint an orchestrator that genuinely monitors workers and reads their terminals, or convene a roundtable of role-played agents in a shared chat via crystl quest.
Turns, tool calls, results and tables are captured as agent-readable metadata and rendered fast on the GPU with Metal.
Approval requests, questions and alerts appear as color-coded glass cards, while a panel tracks token burn and estimates turns left.

Open-source Rust coding agents for your terminal, built for parallelism
Each additional jcode session costs megabytes rather than hundreds of megabytes, and a new session is ready for input in well under a tenth of a second, so you can run many agents on hardware you already own.
Launch multiple agents in parallel, hand off long jobs to background or headless execution, and keep durable task state so work survives interruption.
The jcode bench suite (float-print, json-unescape, utf16-transcode) scores optimization depth on an analog axis with no capping timeouts, so capability differences stay visible.
Agents rate confidence when a task item is assigned and again when it is finished; a sudden jump triggers forced re-verification instead of blind acceptance.

The AI coding agent for building ambitious software
The AI coding agent for building ambitious software
Google's agent-first development platform for building and shipping software with AI agents
Google's agent-first development platform for building and shipping software with AI agents

The coding agent that learns your coding taste
The coding agent that learns your coding taste
Free / Open-sourceA minimal, extensible terminal coding agent you can reshape
Free / Open-sourceA minimal, extensible terminal coding agent you can reshape
Free / Open-sourceRun many coding agents in parallel, each in its own worktree
Free / Open-sourceRun many coding agents in parallel, each in its own worktree
SpecialistAn AI IDE and coding agent that works on your project, not just your cursor
SpecialistAn AI IDE and coding agent that works on your project, not just your cursor

AI-powered terminal and agentic software factory for development teams

Agent orchestration platform for your whole software development lifecycle
Agent orchestration platform for your whole software development lifecycle

SpecialistAn infinite canvas for orchestrating multiple AI coding agents on macOS
Free / Open-sourceOpen-source coding agent built for low-cost, open-weight language models
Free / Open-sourceOpen-source coding agent built for low-cost, open-weight language models

Free / Open-sourceRun multiple coding agents in parallel in one shared workspace
Free / Open-sourceRun multiple coding agents in parallel in one shared workspace