Comparison
pdfmux vs chunktuner
Verdict
Pick pdfmux if pdfmux offers efficient PDF extraction with self-healing, no AI required, at various cost modes; pick chunktuner if chunktuner is a Python-based tool for benchmarking and optimizing chunking strategies in Retrieval-Augmented Generation (RAG) systems. It offers a CLI, Python library, and MCP server to evaluate and optimize text-split,朱.
Markdown twin · pdfmux alternatives · chunktuner alternatives
GraphCanon updated Sep 20, 2026
14views this month
vs
Trust & integrity
| Signal | pdfmux | chunktuner |
|---|---|---|
| Maintenance | Active (8d since push) As of Sep 20, 2026 · github_public_v1 | Steady (89d since push) As of Sep 18, 2026 · github_public_v1 |
| Provenance | Not a fork · Personal account As of Sep 20, 2026 · github_public_v1 | Not a fork · Personal account As of Sep 18, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Jul 11, 2026 · osv@v1 | No lockfile (source not queried) As of Sep 18, 2026 · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- pdfmux
- PDF extraction with self-healing and cost-aware mechanisms
- chunktuner
- Benchmark and optimize chunking strategies for RAG corpus
Stars
- pdfmux
- 82
- chunktuner
- 2
Forks
- pdfmux
- 14
- chunktuner
- 0
Open issues
- pdfmux
- 4
- chunktuner
- 0
Language
- pdfmux
- Python
- chunktuner
- Python
Adopt for
- pdfmux
- pdfmux offers efficient PDF extraction with self-healing, no AI required, at various cost modes.
- chunktuner
- Chunktuner is a Python-based tool for benchmarking and optimizing chunking strategies in Retrieval-Augmented Generation (RAG) systems. It offers a CLI, Python library, and MCP server to evaluate and optimize text-split,朱
Persona
- pdfmux
- -
- chunktuner
- -
Runtime
- pdfmux
- -
- chunktuner
- -
License
- pdfmux
- MIT
- chunktuner
- MIT
Last pushed
- pdfmux
- Sep 12, 2026
- chunktuner
- Jun 21, 2026
Categories
- pdfmux
- Data & Retrieval, Evaluation & Observability
- chunktuner
- Data & Retrieval, Evaluation & Observability
Trust and health
Maintenance
- pdfmux
- Active (82%)
- chunktuner
- Steady (60%)
Days since push
- pdfmux
- 8d
- chunktuner
- 89d
Open issues (now)
- pdfmux
- 4
- chunktuner
- 0
Stars delta
- pdfmux
- +3 (30d)
- chunktuner
- 0 (30d)
Full report
- pdfmux
- Trust report
- chunktuner
- Trust report
Shared compatibility
- Python · pdfmux: Python runtime · chunktuner: Python runtime
Choose pdfmux if…
- Tags unique to pdfmux: ocr, pdf-extraction, self-healing, structured-extraction.
- pdfmux ships Docker support for self-hosted deployment.
- You need high accuracy without LLMs or GPUs.
When NOT to use pdfmux
- Require real-time GPU-based AI processing for speed.
- Working with non-PDF file formats as sole tool.
Choose chunktuner if…
- Tags unique to chunktuner: chunking, embedding, evaluation, langchain.
- When you need to benchmark and optimize chunking strategies specifically for Retrieval-Augmented Generation (RAG) systems.
- Leaner open-issue backlog (0).
When NOT to use chunktuner
- If your project does not involve Retrieval-Augmented Generation (RAG) systems, as Chunktuner is specialized for RAG.
- If you do not require a Python-based solution or do not wish to use a tool that provides both a CLI and a Python library.
- When you are looking for a tool that does not offer a cost estimation feature before running evaluations.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (NameetP/pdfmux) · observed Sep 20, 2026
- GitHub forks (NameetP/pdfmux) · observed Sep 20, 2026
- Last push (NameetP/pdfmux) · observed Sep 12, 2026
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (shantanu-deshmukh/chunktuner) · observed Sep 20, 2026
- GitHub forks (shantanu-deshmukh/chunktuner) · observed Sep 20, 2026
- Last push (shantanu-deshmukh/chunktuner) · observed Jun 21, 2026
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Sep 18, 2026
- Trust scan (lockfile / OSV) · observed Sep 18, 2026
GitHub stars on cards: pdfmux 82 · chunktuner 2 (synced Sep 20, 2026).
Common questions
- What is the difference between pdfmux and chunktuner?
- pdfmux: PDF extraction with self-healing and cost-aware mechanisms. chunktuner: Benchmark and optimize chunking strategies for RAG corpus. See the comparison table for live GitHub stats and shared categories.
- When should I choose pdfmux over chunktuner?
- Choose pdfmux over chunktuner when Tags unique to pdfmux: ocr, pdf-extraction, self-healing, structured-extraction; pdfmux ships Docker support for self-hosted deployment; You need high accuracy without LLMs or GPUs.
- When should I choose chunktuner over pdfmux?
- Choose chunktuner over pdfmux when Tags unique to chunktuner: chunking, embedding, evaluation, langchain; When you need to benchmark and optimize chunking strategies specifically for Retrieval-Augmented Generation (RAG) systems; Leaner open-issue backlog (0).
- When should I avoid pdfmux?
- Require real-time GPU-based AI processing for speed. Working with non-PDF file formats as sole tool.
- When should I avoid chunktuner?
- If your project does not involve Retrieval-Augmented Generation (RAG) systems, as Chunktuner is specialized for RAG. If you do not require a Python-based solution or do not wish to use a tool that provides both a CLI and a Python library. When you are looking for a tool that does not offer a cost estimation feature before running evaluations.
- Is pdfmux or chunktuner more popular on GitHub?
- pdfmux has more GitHub stars (82 vs 2). Stars measure visibility, not whether either tool fits your constraints.
- Are pdfmux and chunktuner open source?
- Yes - both are open-source projects on GitHub (pdfmux: MIT, chunktuner: MIT).
- Where can I find alternatives to pdfmux or chunktuner?
- GraphCanon lists graph-backed alternatives at pdfmux alternatives and chunktuner alternatives (pdfmux markdown twin, chunktuner markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, pdfmux or chunktuner?
- pdfmux: Active. chunktuner: Steady. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for pdfmux and chunktuner?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: pdfmux trust report; chunktuner trust report.