| Price from | $49/mo | $9/mo |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 3 | 6 |
| Spec score · HTML to PDF APIs | 8.3 (#7) | 8.1 (#13) |
| Integrations | The site lists integrations with AWS S3, Bubble, Zapier, n8n, Node-RED, and Parabola, plus REST API, client libraries, and webhooks. | The service exposes a REST API and supports polling or HMAC-signed completion webhooks for batch jobs. |
| Intended users | The company identifies SaaS developers, agricultural software developers, and financial and legal businesses processing forms as users of DocSpring. | The site presents KimiDoc for payroll and HR, banking and finance, healthcare, government, legal services, logistics, retail, and education document workloads. |
| Product | DocSpring is a PDF automation API for developers to fill forms, generate documents, and collect e-signatures. | KimiDoc is an HTML-to-PDF REST API for generating documents such as invoices, payslips, statements, certificates, and labels. |
| Security | DocSpring says stored submission data is encrypted at rest with AES-256, stored files use AWS Key Management Service, and access is via TLS. | The site says self-hosted deployments have no telemetry or licence check-in, can run air-gapped, and keep documents on hardware controlled by the customer. |
| Support | Support is handled by DocSpring's engineers, and the company says fixes are usually deployed within days. | The Starter plan includes email support and the Business plan includes priority support. |
