Comparison
promptflow vs open-webui
Verdict
Pick promptflow when license: promptflow is MIT, open-webui is Other; pick open-webui when license: open-webui is Other, promptflow is MIT.
Markdown twin · promptflow alternatives · open-webui alternatives
GraphCanon updated today
vs
Trust & integrity
| Signal | promptflow | open-webui |
|---|---|---|
| Maintenance | Very active (1d since push) As of today · github_public_v1 | Very active (0d since push) As of 1d · github_public_v1 |
| Provenance | Not a fork · Organization account As of today · github_public_v1 | Not a fork · Organization account As of 1d · github_public_v1 |
| Security (OSV) | No lockfile As of today · none | No MCP manifest As of 1d · mcp_manifest |
Tagline
- promptflow
- Build high-quality LLM apps - from prototyping, testing to production deployment and monitoring.
- open-webui
- User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
Stars
- promptflow
- 11k
- open-webui
- 145k
Forks
- promptflow
- 1.1k
- open-webui
- 21k
Open issues
- promptflow
- 77
- open-webui
- 391
Language
- promptflow
- Python
- open-webui
- Python
Adopt for
- promptflow
- -
- open-webui
- Suitable for developers working with large language models who require a user-friendly interface and support for multiple APIs including Ollama and OpenAI.
Persona
- promptflow
- -
- open-webui
- -
Runtime
- promptflow
- -
- open-webui
- -
License
- promptflow
- MIT
- open-webui
- Other
Last pushed
- promptflow
- Jul 9, 2026
- open-webui
- Jul 10, 2026
Categories
- promptflow
- Evaluation & Observability, Inference & Serving, LLM Frameworks
- open-webui
- Inference & Serving, LLM Frameworks
Trust and health
Days since push
- promptflow
- 1d
- open-webui
- 0d
Open issues (now)
- promptflow
- 77
- open-webui
- 391
Security scan
- promptflow
- No lockfile
- open-webui
- No MCP manifest
Full report
- promptflow
- Trust report
- open-webui
- Trust report
Choose promptflow if…
- License: promptflow is MIT, open-webui is Other.
- Tags unique to promptflow: ai-application-development, ai-applications, chatgpt, gpt.
- Also covers Evaluation & Observability.
When NOT to use promptflow
- Evaluation & Observability: Defer heavyweight eval infra only until you have real traffic - never skip it once users depend on answers.
- Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic.
- LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves.
Choose open-webui if…
- License: open-webui is Other, promptflow is MIT.
- Tags unique to open-webui: openai, self-hosted.
- When you need to integrate multiple AI services, such as Ollama and OpenAI, into a unified user interface.
When NOT to use open-webui
- When looking for tooling that exclusively supports APIs other than Ollama and OpenAI, as these are specific areas of focus for open-webui.
- If the requirement is a highly specialized interface tailored to specific tasks rather than a general AI interaction platform.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (microsoft/promptflow) · observed Jul 11, 2026
- GitHub forks (microsoft/promptflow) · observed Jul 11, 2026
- Last push (microsoft/promptflow) · observed Jul 9, 2026
- License file (MIT) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (open-webui/open-webui) · observed Jul 11, 2026
- GitHub forks (open-webui/open-webui) · observed Jul 11, 2026
- Last push (open-webui/open-webui) · observed Jul 10, 2026
- License file (Other) · observed Jul 11, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: promptflow 11k · open-webui 145k (synced Jul 11, 2026).
Common questions
- What is the difference between promptflow and open-webui?
- promptflow: Build high-quality LLM apps - from prototyping, testing to production deployment and monitoring.. open-webui: User-friendly AI Interface (Supports Ollama, OpenAI API, ...). See the comparison table for live GitHub stats and shared categories.
- When should I choose promptflow over open-webui?
- Choose promptflow over open-webui when License: promptflow is MIT, open-webui is Other; Tags unique to promptflow: ai-application-development, ai-applications, chatgpt, gpt; Also covers Evaluation & Observability.
- When should I choose open-webui over promptflow?
- Choose open-webui over promptflow when License: open-webui is Other, promptflow is MIT; Tags unique to open-webui: openai, self-hosted; When you need to integrate multiple AI services, such as Ollama and OpenAI, into a unified user interface.
- When should I avoid promptflow?
- Evaluation & Observability: Defer heavyweight eval infra only until you have real traffic - never skip it once users depend on answers. Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic. LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves.
- When should I avoid open-webui?
- When looking for tooling that exclusively supports APIs other than Ollama and OpenAI, as these are specific areas of focus for open-webui. If the requirement is a highly specialized interface tailored to specific tasks rather than a general AI interaction platform.
- Is promptflow or open-webui more popular on GitHub?
- open-webui has more GitHub stars (145,029 vs 11,180). Stars measure visibility, not whether either tool fits your constraints.
- Are promptflow and open-webui open source?
- Yes - both are open-source projects on GitHub (promptflow: MIT, open-webui: Other).
- Where can I find alternatives to promptflow or open-webui?
- GraphCanon lists graph-backed alternatives at promptflow alternatives and open-webui alternatives (promptflow markdown twin, open-webui 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, promptflow or open-webui?
- promptflow: Very active. open-webui: 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 promptflow and open-webui?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: promptflow trust report; open-webui trust report.