Is there a OpenAI Codex GUI for Mac, Windows and Linux?

Yes. Tesseract is a free desktop app for all three that runs OpenAI Codex in a window, with a code editor, a terminal, a live preview and a browser beside the conversation.

Does it cost anything to use OpenAI Codex in Tesseract?

Tesseract is free. Sign in with ChatGPT, or use an OpenAI API key. Your plan or key with OpenAI works as it does anywhere else, with its own limits; Tesseract adds no charge on top.

Can I use OpenAI Codex and other agents at the same time?

Yes. Each conversation picks its own framework, so OpenAI Codex can work in one conversation while Claude Code, Codex or any of the 13 others work in another.

Does Tesseract change how OpenAI Codex works?

It runs OpenAI Codex itself, installed on your computer, and adds what is around it: the window, the editor and terminal, a plan you approve, permission prompts and a record of the conversation you can search and pick up later.

Codex GUI · free

A free desktop app for OpenAI Codex.

OpenAI’s coding agent, the Codex CLI: it plans, edits your files and runs commands in your project. Tesseract gives it a window on Mac, Windows and Linux — beside a code editor, a terminal and a live preview, with a plan you approve before it acts.

Download free All 14 agents

Updated October 22, 2026 · Made by OpenAI · OpenAI Codex’s own site

The model menu in a conversation, with recent models and models grouped by maker.

Set up

OpenAI Codex running in three steps.

Download Tesseract. Free for Mac, Windows and Linux; it installs and updates itself.
Pick OpenAI Codex. On the first-run screen or in Settings. Tesseract installs it for you, or uses the copy already on your computer.
Sign in. Sign in with ChatGPT, or use an OpenAI API key.

What works

OpenAI Codex in Tesseract, feature by feature.

Read from the app’s own framework catalog — what Tesseract does with OpenAI Codex today, not what any agent promises.

Asks you before a risky tool call
Pick the model for each message
Choose how hard it thinks
Send it images and files
Drives a real browser
Tesseract’s tools and your MCP servers
Skills and extensions
Subagents
Pick up a past conversation
Fork a conversation
Restore files to an earlier message
A reviewable diff of everything it changed
Shows how full its context window is
Compacts a long conversation to keep going
Keeps working when you step away
Scheduled, repeating jobs
Checks its own work before it finishes
Runs inside the operating system’s sandbox
The cost of every conversation
An integrated terminal
Search everything it has said

Around it

Everything an agent needs, in the same window.

A code workspaceThe Monaco editor with a file tree and tabs, an integrated terminal, and a live preview while it works.
A plan firstChat, Plan or Full access for each conversation, and an editable plan you approve before it acts.
A real browserA browser the agent can drive for forms and live pages, and your own signed-in browser through the extension.
Your other computersRun OpenAI Codex on a server or another machine with tesseract-agent, and follow it from here.
Tools and skillsAny MCP server over stdio, HTTP or SSE, skills from ClawHub, and extensions with their own tools.
Free to useTesseract costs nothing. Your OpenAI account or key works as it does anywhere else.

Questions

About OpenAI Codex in Tesseract.

Is there a OpenAI Codex GUI for Mac, Windows and Linux?: Yes. Tesseract is a free desktop app for all three that runs OpenAI Codex in a window, with a code editor, a terminal, a live preview and a browser beside the conversation.
Does it cost anything to use OpenAI Codex in Tesseract?: Tesseract is free. Sign in with ChatGPT, or use an OpenAI API key. Your plan or key with OpenAI works as it does anywhere else, with its own limits; Tesseract adds no charge on top.
Can I use OpenAI Codex and other agents at the same time?: Yes. Each conversation picks its own framework, so OpenAI Codex can work in one conversation while Claude Code, Codex or any of the 13 others work in another.
Does Tesseract change how OpenAI Codex works?: It runs OpenAI Codex itself, installed on your computer, and adds what is around it: the window, the editor and terminal, a plan you approve, permission prompts and a record of the conversation you can search and pick up later.

Same app

13 more agents, one click away.

Tesseract as an agentic IDE →