Docling Serve alternatives
Short answer
We track 5 self-hosted alternatives to Docling Serve: PaddleOCR, MinerU, Unstract, Paperless-AI and paperless-gpt.
PaddleOCR (same category): larger community (91.8k vs 1.9k GitHub stars).
MinerU (same category): larger community (82.7k vs 1.9k GitHub stars).
Unstract (same category): larger community (7.3k vs 1.9k GitHub stars).
Last updated · how we rank · sources
Docling Serve alternatives compared
| # | App | Advantages over Docling Serve | Est. server cost | Official hardware | License | Stars | Last commit | Compare |
|---|---|---|---|---|---|---|---|---|
| — | Docling Serve (this app) | Active | not estimated (no official RAM figure) | not published | MIT | 1.9k | Oct 27, 2026 | — |
| 1 | PaddleOCR Same category | larger community (91.8k vs 1.9k GitHub stars) | not estimated (no official RAM figure) | not published | Apache-2.0 | 91.8k | Sep 16, 2026 | Docling Serve vs PaddleOCR |
| 2 | MinerU Same category | larger community (82.7k vs 1.9k GitHub stars) Trade-off: Docling Serve has fewer license conditions (Permissive vs Custom / conditional) | from €11.99/mo | minimum 2 GB RAM | MinerU Open Source License (Apache-2.0 with additional terms) | 82.7k | Oct 11, 2026 | Docling Serve vs MinerU |
| 3 | Unstract Same category | larger community (7.3k vs 1.9k GitHub stars) Trade-off: Docling Serve has fewer license conditions (Permissive vs Network copyleft (AGPL)) | from €35.99/mo | minimum 8 GB RAM | AGPL-3.0 | 7.3k | Oct 27, 2026 | Docling Serve vs Unstract |
| 4 | Paperless-AI Same category | larger community (6.0k vs 1.9k GitHub stars) Trade-off: Docling Serve has an actively maintained project (Paperless-AI is stale) | not estimated (no official RAM figure) | not published | MIT | 6.0k | Mar 31, 2026 | Docling Serve vs Paperless-AI |
| 5 | paperless-gpt Same category | None in our data (differs in features) | not estimated (no official RAM figure) | not published | MIT | 2.8k | Oct 16, 2026 | Docling Serve vs paperless-gpt |
Ranked by the number of objective advantages each alternative has over the app (cheaper estimated server cost, lighter official RAM figure, no GPU needed, fewer license conditions, better maintenance status, at least 1.5× the GitHub stars, simpler deploy). Ties: same-category apps first, then more GitHub stars. License order used: Permissive (MIT/Apache) → Open core → Copyleft (GPL) or Custom conditions → Network copyleft (AGPL) → Source-available. Archived projects are not listed as alternatives.
What each alternative is
- PaddleOCR (Document processing): OCR toolkit and document AI engine that turns scans, images and PDFs into LLM-ready text, Markdown or JSON.
- MinerU (Document processing): Document parser that converts PDFs, scans and Office files into clean Markdown or JSON for LLMs and RAG.
- Unstract (Document processing): No-code LLM platform that turns invoices, forms and other documents into structured JSON.
- Paperless-AI (Document processing): AI auto-tagging and document chat for Paperless-ngx (currently unmaintained).
- paperless-gpt (Document processing): LLM add-on for paperless-ngx that does better OCR and writes titles, tags and correspondents.
Docling Serve alternatives: FAQ
What is the best self-hosted alternative to Docling Serve?
By our objective ranking: 1. PaddleOCR (larger community (91.8k vs 1.9k GitHub stars)) 2. MinerU (larger community (82.7k vs 1.9k GitHub stars)) 3. Unstract (larger community (7.3k vs 1.9k GitHub stars)). "Best" depends on the features you need; the ranking only counts cost, hardware, license, maintenance, community size and deploy complexity.
Is there a cheaper alternative to Docling Serve?
Not by our estimate. Docling Serve: not estimated (no official RAM figure). Alternatives: PaddleOCR (not estimated (no official RAM figure)), MinerU (from €11.99/mo), Unstract (from €35.99/mo), Paperless-AI (not estimated (no official RAM figure)), paperless-gpt (not estimated (no official RAM figure)).
Which Docling Serve alternative has the most permissive license?
None has fewer conditions than Docling Serve (MIT (Permissive)). Alternatives: PaddleOCR: Apache-2.0 (Permissive); MinerU: MinerU Open Source License (Apache-2.0 with additional terms) (Custom / conditional); Unstract: AGPL-3.0 (Network copyleft (AGPL)); Paperless-AI: MIT (Permissive); paperless-gpt: MIT (Permissive). Not legal advice.
Related
Sources
- Docling Serve GitHub repository: github.com/docling-project/docling-serve
- Docling Serve documentation: github.com/docling-project/docling-serve/blob/main/docs/README.md
- Docling Serve license: github.com/docling-project/docling-serve/blob/main/LICENSE
- Docling Serve hardware requirements: github.com/docling-project/docling-serve#container-images
- Docling Serve deploy instructions: github.com/docling-project/docling-serve#getting-started
- PaddleOCR GitHub repository: github.com/PaddlePaddle/PaddleOCR
- MinerU GitHub repository: github.com/opendatalab/MinerU
- Unstract GitHub repository: github.com/Zipstack/unstract
- Paperless-AI GitHub repository: github.com/clusterzx/paperless-ai
- paperless-gpt GitHub repository: github.com/icereed/paperless-gpt
- Hetzner Cloud pricing used for cost estimates (read 2026-10-25): www.hetzner.com/cloud/regular-performance
- GitHub stars and commits: GitHub REST API, refreshed daily