AI coding, on your terms.
Any model. Zero cost.
A free, open-source IDE for any AI model. Bring your own API key, pick any provider, and pay only for what you use.
Integrates with your favourite provider
HOW IT WORKS
Set up once. Code in 3 steps.
Download Origin
Install the desktop app in seconds. No account, no subscription, no sign-up required.
Add your keys
Paste an API key from any provider. Your keys are stored encrypted, locally on your machine.
Start Coding
Pick a model and build. Switch providers anytime and pay only for what you actually use.
WHY ORIGIN
Stop paying the subscription tax,
pay only for what you use.
Built differently from the ground up. No subscription, no bloated Electron shell, no vendor lock-in. Just a fast, native IDE that gets out of your way.
Pay per use
No monthly seat fee. Pay your model provider directly and only for what you actually use. Switch providers anytime without changing your plan.
8MB, not 800
At 8MB, Origin is in your hands in seconds. No waiting, no slowdown, nothing eating your RAM in the background. Just open it, pick a model, and start building right away.
Pinboard
Pin AI messages, take notes, and jump back anytime. Keep your thoughts and context where you need them, whenever you need them.
CORE FEATURES
Everything you need to build.
Nothing held back, nothing locked away.
Agent Mode
AI runs multi-step tasks across your codebase with 7 real tools.
AI Autocomplete
Copilot-style ghost text that finishes your line. Press Tab.
Plan Mode
AI explores, proposes a plan, you approve before it touches code.
Bring Your Own Key
12+ providers, pay your provider directly, zero markup.
AI Spend Tracker
See per-model token cost and cache hits in real time.
Inline AI Diff
Review every AI change, accept or reject hunk by hunk.
Status Island
Track current task, git changes, RAM, and AI spend in one pill.
Real PTY Terminal
A true multi-tab terminal with persistent shell history.
Live Preview
Sandboxed localhost preview with viewport presets, right in the editor.
Source Control
Commit, push, and browse git history without leaving the app.
Command Palette
Files, search, and commands unified under one Ctrl+P.
And more...
New features shipping every week. Origin is just getting started.
CORE CAPABILITIES
Built to handle the hard parts.
So you can focus on building.
AGENT MODE
Tell it what to build. Watch it work.
Agent mode runs a full reasoning loop with 7 tools — reading files, editing code, running bash commands, and searching your codebase. You stay in control. It handles the repetitive work.
Reads and writes files across your entire project
Runs bash commands and checks their output
Loops automatically until the task is complete
INLINE AI DIFF
Every change, in context. Accept or reject hunk by hunk.
AI edits open in a dedicated diff tab showing exactly what changed. Accept the whole file, reject it entirely, or step through individual hunks. Nothing lands in your code without your sign-off.
Opens every AI edit in a dedicated diff tab
Accept or reject individual hunks, not just the whole file
Nothing writes to disk until you sign off
PLAN MODE
See the plan before it runs. Approve what you want.
Origin explores your codebase first, then proposes a step-by-step plan as a card. Review every action before a single file is touched. Approve to execute, or steer it in a different direction.
Explores your codebase before touching anything
Presents a reviewable step-by-step plan card
Executes only after you approve
WHO IT'S FOR
Built for developers who ship.
Whatever your setup looks like.
Solo builders
Building a side project or SaaS on your own? Full AI power with no seat fee. Pay only for the tokens you use, and nothing when you're not coding.
Freelancers
Your workload varies by project. A flat monthly subscription makes no sense. With Origin, you pay when you code and nothing when you don't.
Open source contributors
8MB, no account, no sign-up. Origin installs in seconds, runs natively, and stays out of your way across any repo.
Students
Learn to build with AI without a subscription. Bring a free-tier API key and get the same experience as tools that charge $20 a month.
BLOG
From the team. What we're building and why.
19th June 2026 · dev-log
Origin v0.1.3: A Real Debugger, Web Preview, and macOS
Origin v0.1.3 ships a full DAP debugger with breakpoints and call stack, a Web Preview pane, native macOS builds, and a smarter agent.
18th June 2026 · blog
Why BYOK Is the Future of AI Coding
Subscription AI coding tools are a tax on developers. Bring Your Own Key puts you back in control of your models and your bill.
18th June 2026 · blog
Why Your AI IDE Shouldn't Weigh 800MB
Most AI editors are Electron apps that eat your RAM. Origin is built on Tauri and ships as an 8MB binary. Here is why that matters.
FAQ
Answers to the questions that come up most.
AI coding, on your terms. Download for free today.
Download Origin