Comparison
ECC vs siyuan
Verdict
Pick ECC if eCC is a performance optimization system for AI agents built to enhance skills, instincts, memory, security, and development processes; pick siyuan if siyuan is a privacy-focused, self-hosted knowledge management tool written in TypeScript and Golang, specialized for personal digital gardens and integrating with various local storage solutions.
Markdown twin · ECC alternatives · siyuan alternatives
GraphCanon updated today
Trust & integrity
| Signal | ECC | siyuan |
|---|---|---|
| Maintenance | Very active (2d since push) As of today · github_public_v1 | Very active (0d since push) As of today · github_public_v1 |
| Provenance | Not a fork · Personal account As of today · github_public_v1 | Not a fork · Organization account As of today · github_public_v1 |
| Security (OSV) | No MCP manifest As of today · mcp_manifest | No lockfile As of today · none |
Tagline
- ECC
- The agent harness performance optimization system for AI agents
- siyuan
- A privacy-first, self-hosted personal knowledge management software
Stars
- ECC
- 228k
- siyuan
- 45k
Forks
- ECC
- 35k
- siyuan
- 2.9k
Open issues
- ECC
- 93
- siyuan
- 334
Language
- ECC
- JavaScript
- siyuan
- TypeScript
Adopt for
- ECC
- ECC is a performance optimization system for AI agents built to enhance skills, instincts, memory, security, and development processes.
- siyuan
- Siyuan is a privacy-focused, self-hosted knowledge management tool written in TypeScript and Golang, specialized for personal digital gardens and integrating with various local storage solutions.
Persona
- ECC
- -
- siyuan
- -
Runtime
- ECC
- -
- siyuan
- -
License
- ECC
- MIT
- siyuan
- AGPL-3.0
Last pushed
- ECC
- Jul 9, 2026
- siyuan
- Jul 11, 2026
Categories
- ECC
- AI Agents, Developer Tools
- siyuan
- Developer Tools
Trust and health
Days since push
- ECC
- 2d
- siyuan
- 0d
Open issues (now)
- ECC
- 93
- siyuan
- 334
Owner type
- ECC
- User
- siyuan
- Organization
Security scan
- ECC
- No MCP manifest
- siyuan
- No lockfile
Full report
- ECC
- Trust report
- siyuan
- Trust report
Choose ECC if…
- ECC is primarily JavaScript; siyuan is TypeScript.
- License: ECC is MIT, siyuan is AGPL-3.0.
- ECC requires JavaScript environment and is open-source, licensed under MIT. Specific setup details are not provided within repository data.
- Pricing: Being open source with an MIT license, ECC itself is free to use, but additional features or support might incur costs outside of the core project..
- Tags unique to ECC: llm, productivity, claude, claude-code.
- Also covers AI Agents.
- When you are specifically working with AI agents like Claude Code and Codex that require advanced performance tuning across multiple dimensions such as skills and memory management.
When NOT to use ECC
- For projects focusing solely on traditional software development workflows without AI components, ECC's specialized tools are not necessary.
- In scenarios where you're working with closed-source or proprietary AI systems that do not allow for the same levels of customization as open platforms like those optimized by ECC.
Choose siyuan if…
- siyuan is primarily TypeScript; ECC is JavaScript.
- License: siyuan is AGPL-3.0, ECC is MIT.
- Tags unique to siyuan: markdown, self-hosted, pdf, local-first.
- siyuan ships Docker support for self-hosted deployment.
- Siyuan should be used when you require a fully open-source tool that prioritizes privacy and keeps all data locally.
When NOT to use siyuan
- Siyuan may not be suitable if you require cloud synchronization features provided by proprietary software as it focuses on local-first operations.
- If your preference is for a more visually customizable interface, Siyuan's design might have limitations compared to its competitors that offer extensive theming and UI customization.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (affaan-m/ECC) · observed Jul 11, 2026
- GitHub forks (affaan-m/ECC) · observed Jul 11, 2026
- Last push (affaan-m/ECC) · observed Jul 9, 2026
- License file (MIT) · observed Jul 11, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (siyuan-note/siyuan) · observed Jul 11, 2026
- GitHub forks (siyuan-note/siyuan) · observed Jul 11, 2026
- Last push (siyuan-note/siyuan) · observed Jul 11, 2026
- License file (AGPL-3.0) · observed Jul 11, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 12, 2026
GitHub stars on cards: ECC 228k · siyuan 45k (synced Jul 11, 2026).
Common questions
- What is the difference between ECC and siyuan?
- ECC: The agent harness performance optimization system for AI agents. siyuan: A privacy-first, self-hosted personal knowledge management software. See the comparison table for live GitHub stats and shared categories.
- When should I choose ECC over siyuan?
- Choose ECC over siyuan when ECC is primarily JavaScript; siyuan is TypeScript; License: ECC is MIT, siyuan is AGPL-3.0; ECC requires JavaScript environment and is open-source, licensed under MIT. Specific setup details are not provided within repository data; Pricing: Being open source with an MIT license, ECC itself is free to use, but additional features or support might incur costs outside of the core project.; Tags unique to ECC: llm, productivity, claude, claude-code; Also covers AI Agents; When you are specifically working with AI agents like Claude Code and Codex that require advanced performance tuning across multiple dimensions such as skills and memory management.
- When should I choose siyuan over ECC?
- Choose siyuan over ECC when siyuan is primarily TypeScript; ECC is JavaScript; License: siyuan is AGPL-3.0, ECC is MIT; Tags unique to siyuan: markdown, self-hosted, pdf, local-first; siyuan ships Docker support for self-hosted deployment; Siyuan should be used when you require a fully open-source tool that prioritizes privacy and keeps all data locally.
- When should I avoid ECC?
- For projects focusing solely on traditional software development workflows without AI components, ECC's specialized tools are not necessary. In scenarios where you're working with closed-source or proprietary AI systems that do not allow for the same levels of customization as open platforms like those optimized by ECC.
- When should I avoid siyuan?
- Siyuan may not be suitable if you require cloud synchronization features provided by proprietary software as it focuses on local-first operations. If your preference is for a more visually customizable interface, Siyuan's design might have limitations compared to its competitors that offer extensive theming and UI customization.
- Is ECC or siyuan more popular on GitHub?
- ECC has more GitHub stars (228,395 vs 45,045). Stars measure visibility, not whether either tool fits your constraints.
- Are ECC and siyuan open source?
- Yes - both are open-source projects on GitHub (ECC: MIT, siyuan: AGPL-3.0).
- Where can I find alternatives to ECC or siyuan?
- GraphCanon lists graph-backed alternatives at ECC alternatives and siyuan alternatives (ECC markdown twin, siyuan 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, ECC or siyuan?
- ECC: Very active. siyuan: Very active. 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 ECC and siyuan?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: ECC trust report; siyuan trust report.