Build agentic workflows at ease.

Compose agents on a canvas, run them in parallel, and ship the PR — local-first, on your machine.

Download
or install from your terminal
curl -fsSL https://www.celial.ai/install.sh | sh

Local-first · Your keys, your models · Ships real PRs

Meet Celial

Everything your agents do. All on one canvas.

Compose, run, and review whole fleets of agents without losing the thread.

Real screenshots — Celial, ocean appearance

The shift

Development, before and after agents.

One PR at a time

Ten in flight

Babysitting a terminal

Reading a diff

Rerun from zero

Resume from the failed node

Surprise API bill

Cost on every node

Proof

Agent runs were a black box. Now they're a canvas.

Celial terminal — a live Claude Code session attached to a node

Your agents, live on your machine

Supports Claude Code, Codex & OpenCode agents. Agents pick up your project's rules, skills, and conventions.

Celial insights — cost and token charts per node

Learns from every run

Every run feeds insights back, smart version comparisons and memory notes that make the next run sharper.

Celial node inspector — model, prompt and gate settings

Connected to your stack

Connect a vast variety of integrations such as GitHub, Slack, Linear & more

Celial run diff — the pull request produced by a run

Work smart, not hard

Celi, your built-in assistant, cloud sync across devices, and shared team workspaces.

Local-first

Runs on your machine. Answers to no one else.

Your keys, your models

Celial talks to providers with your own API keys — choose fast or frontier models per node.

Nothing leaves your machine

Agents execute locally, in terminal sessions you own. There is no cloud middleman.

Versionable workflows

Readable, diffable workflows — version them like the code they write.

Control

Powerful runs, kept on a leash.

Gates & questions

Put a gate on any edge — the run pauses for your approval, and agents can ask you questions.

Resume from failure

A failed node doesn't restart the run. Fix it and resume exactly where it stopped.

Costs while it happens

Token and dollar costs roll up per node and per run — visible during the run, not after.

Early words

Built with the people who run agents all day.

“I stopped babysitting terminals. I design the run, gate the risky edges, and read the diff.”

Early access user

Staff engineer

“The first agent tool where I always know what's running — and what it costs.”

Early access user

Platform lead

“Ten branches in flight before lunch. Review is the job now, and that's the point.”

Early access user

Senior developer

“The canvas is the mental model I always had in my head. Now it's the actual interface.”

Early access user

Tech lead

“Gates mean I trust it with real work. Nothing ships without me.”

Early access user

Engineering manager

“It made running agents in parallel feel boring — in the best possible way.”

Early access user

Indie developer

Develop at the speed of agents.

Download Celial and put your agents to work — local-first, on your machine, in minutes.

Download

Free while in early access · macOS, Linux, Windows.

Celial design canvas — the fix-login-500 workflow