Local-First, Open-Source Apps
Your data is a folder of Markdown and JSON files on your machine, with Git history beside it. It's open, tweakable, and yours.
Tools that share your memory
Record a meeting in Whispering. Edit the transcript in Obsidian. Query it with your AI. No copy-pasting, no exports. Your tools share one memory.
Fast, minimal transcription that works with local and cloud models
- Choose your model
- No subscriptions
- Plain text output
Talk to your codebase from anywhere using your own hardware
- Local OpenCode instance
- Secure tunneling
- Query from any device
More tools coming soon
Get early accessPrinciples for minds that matter thinkers who build
We believe your tools should amplify your thinking, not fragment it.
For you
Own your data
Everything lives as files on your disk. Delete the app, keep your work.
Use any model
OpenAI, Anthropic, local LLMs. Your choice, your API key.
Preserve authenticity
No middleman. Direct connection to your tools and models.
For developers
Free and open source
Audit the code. Fork it. Make it yours.
Blazing fast
Built with Rust, Svelte 5, and obsessive performance optimization.
Built on tomorrow's stack
Markdown files, Git history, and local-first architecture.
Built different from the ground up
One architecture, endless possibilities
One folder. All your data.
Everything lives in a folder on your machine: Markdown and JSON files with Git history that you actually own.
Local-first by default
Your transcripts, notes, and ideas never leave your machine unless you want them to. No cloud lock-in.
Works with tools you already use
Because everything is Markdown, JSON, and Git, your data is compatible with the tools you already love.
Infinite workflows, zero lock-in
Your data plays nicely with the tools you already love. Edit in VS Code, search with grep, version control with Git.
Obsidian
Edit your notes in your favorite knowledge management tool
grep & ripgrep
Search your data folders with blazing fast Unix tools
Git
Version control your ideas, notes, and transcriptions
VS Code
Open any file in your preferred code editor
Claude & OpenCode
Supercharge your workflow with AI that understands your context
Your favorite tool
Markdown and JSON mean your tools work too. No proprietary formats.
Frequently asked questions
How is this different from Obsidian?
Obsidian is a Markdown editor with sync. Epicenter apps keep their data in folders of Markdown and JSON files with Git history, and any editor or Git tool can work on the same files.
Is my data encrypted?
No. Whoever runs the Git server a folder syncs with can read its files: Epicenter, if you sync with Epicenter. To keep that copy on a machine you control, sync with a Git server you run. You can also run entirely offline.
Can I self-host?
Yes. In the desktop app a folder syncs with any Git server, including one you run. You can also run entirely offline; sync is optional.
What happens if I stop using Epicenter?
Your data is Markdown and JSON files in a Git repository on your disk. Open them with any text editor or Git tool. No export needed; the files are the product.
Software for people who think
We're building an alternative to apps that fragment your thinking across a dozen cloud services. Epicenter is for people who read deeply, write to think, and build to understand.
Every tool is open source. Your data stays in plain files you control. Choose your own models, host your own services, or run everything locally.
Join us in building tools that amplify human agency.