Mesa – A collaborative canvas IDE built for agent-first development
Hi HN - I'm Ryan a product designer who codes, and I built Mesa. Current IDEs feel wrong for the type of development being done now - the focus is still on files. Mesa puts the focus on the full workflow: your agent, terminal, browser, and files all live as equal nodes on a canvas with full multiplayer support. (think figma but for code) I was tired of the overhead of switching windows, tabs, and terminals across multiple projects. Inspired by TouchDesigner and Factorio, I wanted something more fluid and visual. Been using it as a total replacement for Cursor at work every day now. Being…
Mesa – A collaborative canvas IDE built for agent-first development launched on March 13, 2026 with 16 votes, #953 of 23,380 launches that month and more than 90% of that year's launches.
In plain words
Mesa is a collaborative canvas IDE designed for agent-first development. It organizes workflows by placing agents, terminals, browsers, and files as equal elements on a canvas rather than relying on traditional file-focused interfaces, with full multiplayer support. Built for developers working with AI agents and multiple projects simultaneously, Mesa reduces window-switching overhead by allowing users to view and control multiple repositories at once. The tool is free to try and functions as a complete IDE replacement.
written from the facts on this page · September 2026
From the sources
A spatial workspace where every project is a node on a canvas. Attach Claude terminals, browser previews, and tools to each one. Run as many AI agents as you want and see them all working simultaneously.
Claude Code, Codex, Gemini CLI — watch them work across every project, in real time. Agents, terminals, browsers, databases — drag anything onto your workspace. An infinite canvas. Drag folders on, zoom out to see everything at a glance. Code, terminal, preview, docs — all visible. No hunting through windows. Stop navigating file trees. Describe what you want — agents find the files, write the code, run the tests. Bring your own API keys. No markup, no rate limits, no per-seat AI pricing. You pay providers directly. Every repo on one canvas. Agents working across your entire stack simultaneously. React component + manifest. Your custom tools live on the canvas alongside everything else.…from getmesa.dev
In the maker’s words, at launch
Hi HN - I'm Ryan a product designer who codes, and I built Mesa. Current IDEs feel wrong for the type of development being done now - the focus is still on files. Mesa puts the focus on the full workflow: your agent, terminal, browser, and files all live as equal nodes on a canvas with full multiplayer support.…
Does a similar job
all alternatives →
Trickle - Magic Canvas 2025 · trickle.so · ▲1,064Hey HN! Introducing Trickle Magic Canvas: the world’s first Agentic Canvas, where you can visually co-create apps and websites with AI, from idea to production. Why is a canvas better? Most AI tools today rely on linear chats or text prompts. We believe that limits creativity and clarity. Canvas changes the game. 1. Every version & page at a glance. Each page and sub-page lives on a timeline. You can quickly browse, edit, and preview progress like a living, visual document — no more digging through chat logs or scattered states. 2. The canvas is the context. Unlike linear chats, you can…

Paraflow Nov 2025 · paraflow.com · ▲502Paraflow is a canvas-based agent that defines, designs, and delivers. Create PRD, user flow, UI, prototype, and frontend code—all in one Canvas.
Design Agent by LokumaMar 2026 · lokuma.ai · ▲431The designer for your AI agents (Openclaw, CC, Codex)
49agents IDESep 2026 · 49agents.com · ▲128An infinite 2D canvas where every AI coding agent, terminal, repo and machine you own lives side by side. Open source, self-hostable.
- AVA Visual IDE for React2022 · dev.aspect.app · ▲479
I made this because building UIs in a lexical medium like code is super annoying. I have to pre-render what I’m making in my head, and then jump between the browser and IDE to test. I was inspired by the developer console in chrome and safari since I end up editing css there because it’s ironically more convenient. Hope it’s useful!
More ai this month
the category →



Paintings by AI models: programs run through a simulation of oil paint.
AI · 21d ago · stillwet.art
PixVerse R2▲381A real-time world model you can explore and change
AI · 29d ago · world.pixverse.video

Source: Show HN post ↗ · launch text quoted in part
Launched alongside, March 2026
the whole month →


Switch from ChatGPT to Claude with import memory feature
AI · Mar 2026 · claude.com
Littlebird▲709Littlebird remembers everything across your meetings, messages, docs, and apps, then takes action so you can recall any detail and never lose context.
AI · Mar 2026 · littlebird.ai

