Feedback
Tell us what's working and what isn't. Every note goes to the engineering team.
Your feedback shapes Sparrow
Sparrow is open source and actively developed. Feature requests and bug reports directly influence the roadmap. The most-requested items ship first.
For bug reports with reproduction steps, open a GitHub issue — it gives the full context needed to fix things fast.
Document Extraction
Structured data from invoices, receipts, statements, and tables — multi-page PDF, page classification, bounding-box annotation, and schema validation. No cloud dependencies.
Business Rules
Push formatting, derived fields, classification, and transformations to the LLM itself — no post-processing code, just typed schema fields with optional defaults.
Sparrow Agent
Orchestrate Vision LLM extraction with Text LLM reasoning — chain classification, extraction, and field validation with visual monitoring and error handling.