Jelby handles your coding chores for you.
More time for the features you love building. Jelby sits quietly on your desktop, catches broken CI builds, reproduces failing tests in an isolated local sandbox, and opens verified, review-ready pull requests.
Detects broken builds and @jelby issue mentions automatically.
Runs your real test suite in Docker or Direct child process.
Submits draft PRs with full test pass proof and judge scores.
Local Ollama mode ensures zero network egress from your workstation.
From failing test to verified pull request.
Jelby automates the mechanical work of debugging and testing while keeping you in complete control of every merge.
Signal Ingestion
Jelby polls your connected repository. When a CI run fails or an issue mentions @jelby, it captures the failing test names and commit SHA.
Local Reproduction
Spawns an isolated local sandbox (Direct child process or Docker) and executes your project's discovered test command to reliably reproduce the failure.
Plan, Patch & Judge
The Planner maps the approach, the Executor drafts minimal unified diffs, and the internal Reviewer Judge scores patch safety against rigorous rubrics.
Draft Pull Request
Pushes a dedicated branch and opens a review-ready Draft PR with reproduction logs, test evidence, and review confidence scores.
Real test runners. Real sandboxes. Verified pull requests.
Jelby doesn't ask you to merge on faith alone. Every patch is reproduced and verified against your project's real test suite in an isolated local sandbox before opening a review-ready draft PR.
- Discovered test runner: Vitest, Jest, Cargo test, Pytest, Go test, or custom scripts.
- Bounded blast radius: Edits only the files directly implicated by the failure.
- Full review visibility: Inspect the complete unified diff, test logs, and judge confidence scores.
Complete data sovereignty for your codebase.
You shouldn't have to upload your private company code to third-party cloud servers just to get autonomous agent assistance. Jelby was designed from day one to respect your privacy.
Zero-Egress Local Ollama
Local Ollama mode runs models directly on your hardware (Qwen, Kimi, DeepSeek), ensuring zero tokens leave your workstation.
Gated BYO-Key Backends
Optionally connect Anthropic Claude, OpenAI, Google Gemini, or CLI tools. API keys are stored encrypted in your local OS keychain.
Rust Native & Lightweight
Built with a high-performance Rust core and Tauri desktop UI. Lightweight idle footprint with on-demand local execution.
Choose your favorite jelly bean flavor.
Click any Jelby flavor below to change the site's accent theme and see how the desktop application customizes to your style.
Built with full software supply chain transparency.
Every release is signed by Wilburn Pacific Company (Authenticode on Windows, Developer-ID notarized on macOS) and attested with SLSA build provenance for offline verification.