Parser is an AI-powered document extraction tool that reads invoices, receipts, contracts, bank statements, and other documents up to 1,000 pages, returning structured data as JSON, Excel, or CSV. Users define custom extraction templates and validation rules once, and Parser applies them to every document automatically. Files can be submitted via upload, email forwarding, or REST API, with results delivered through real-time webhooks. Parser offers a free plan with no credit card required, and paid tiers for higher volumes and longer documents.