AI coding without
wasting context.
Sparse is a local-first desktop agent for developers who want the benefits of AI coding without surprise token bills, bloated prompts or blind trust in what the model saw.
Fix checkout webhook
Most coding agents treat context like an infinite resource.
Long context windows feel powerful until every run carries old files, noisy logs and irrelevant history. Sparse makes context visible, bounded and reviewable.
Agents grab too much
Entire files, old chat history and noisy logs get shoved into requests because most tools treat context as free.
Budgets are vague
You usually learn the cost after the run. Sparse makes the cap explicit before the agent starts.
Privacy is too fuzzy
Generated files, secrets and terminal dumps need a firewall, not a footnote buried in docs.
A context pipeline, not a prompt dump.
Sparse turns every coding request into a controlled run: map the repo, cap the budget, compress the noise, then show the receipt.
Read structure first
Sparse builds a lightweight repo map of imports, exports and symbols instead of pasting raw files.
Set the run cap
Cheap, Balanced and Deep modes define how much context a task is allowed to use.
Strip terminal noise
Logs and stack traces are reduced to the lines that explain the failure.
Review what was sent
Every run shows selected files, blocked context and saved tokens before you trust the patch.
Built for developers who want control before magic.
Sparse keeps the helpful parts of AI coding and adds the missing operational layer: budgets, review surfaces, receipts and privacy boundaries.
Hard token budgets
Pick a mode and keep the agent inside it. No runaway loop quietly burns a long-context bill.
Smart repo map
Sparse reads the shape of your codebase first, then pulls only the symbols and files that matter.
Context firewall
Rules block secrets, generated files, node_modules and stale chat from reaching the model.
Patch-first workflow
The agent returns structured diffs you can inspect, apply or reject instead of opaque rewrites.
Bring your own keys
Use Anthropic, OpenAI or OpenRouter directly. Sparse does not add model markup.
Local code access
Your repo is read from disk by the desktop client. The web app never needs your source.
Three steps from repo to reviewable patch.
Point Sparse at your repo
The desktop client reads local files and builds an index. No repo upload or cloud sync.
Ask for the change
Choose a budget mode and let Sparse assemble the smallest useful context bundle.
Review the receipt and diff
See selected files, saved tokens and the patch before anything lands in your workspace.
Start free. Upgrade only when history matters.
Early access includes the full Free plan at $0. Pro is optional for unlimited devices, full run history and CSV export.
Default during early access. No credit card.
- BYOK: Anthropic, OpenAI, OpenRouter
- All token budget modes
- Repo map and context firewall
- 1 device
For developers who want unlimited devices and exportable usage history.
- Everything in Free
- Unlimited devices
- Full history and CSV export
- Priority support
Early founders: $9/mo locked forever.
Shared configs, roles and billing.
- Everything in Pro
- Shared repo rules
- SSO and roles
- Invoicing
Your source stays on your machine.
Sparse is designed as a desktop client. The web app handles your account; source code, prompts, terminal logs and API keys stay local by default.
Start coding with less context bloat.
Free during early access. Bring your own API keys and decide the run budget before the agent starts.