head to head · open source
diagram-design vs FastReport
diagram-design has 64,318 GitHub stars, 4,247 forks, 42 open issues and last shipped 2 days ago. FastReport has 3,104 stars, 683 forks, 24 open issues and last shipped 5 days ago. diagram-design leads on adoption by 1,972% (64,318 vs 3,104 stars). diagram-design is written in HTML under MIT; FastReport is written in C# under MIT. diagram-design has attracted 7% as many forks as stars, FastReport 22%. diagram-design was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| diagram-design | FastReport | |
|---|---|---|
| GitHub stars | ★ 64K | ★ 3.1K |
| License | MIT | MIT |
| Written in | HTML | C# |
| Last push | 2026-11-01 | 2026-10-29 |
| Forks | ⑂ 4.2K | ⑂ 683 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick diagram-design if
- You weight community size — 64K stars and counting
- You want the MIT license terms
- Your stack matches HTML
- You value the larger contributor base for long-term maintenance
pick FastReport if
- You want the FastReport feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and FastReport fits your workflow better
About diagram-design
Diagram Design Editorial diagrams your designer won't hate. New in 2.0 — the Loop: flywheels with a shared memory hub. The dashed lines are the write backs. New in 2.3: semantic system patterns and optional accessible motion, while static output stays the default. New in 2.5.10: ten more layout grammars — Sankey, fishbone, Wardley map, kanban, user journey, deployment, dependency graph, UML class, story map, and database schema. 39 editorial diagram types for Claude Code, Codex, Factory Droid, Pi, and Agent Skills compatible hosts. Self contained HTML + SVG. No shadows. No Mermaid slop. Semantic patterns…
read the full diagram-design overview →
About FastReport
What is FastReport? FastReport provides free open source report generator for .NET 6/.NET Core/.NET Framework. You can use the FastReport Open Source in MVC, Web API, console applications. Features FastReport is written in C and it is compatible with .NET Standard 2.0 and higher. Extendable FastReport architecture allows creating your own objects, export filters, wizards and DB engines. Report Objects FastReport is a band oriented report generator. There are 13 types of bands available: Report Title, Report Summary, Page Header, Page Footer, Column Header, Column Footer, Data Header, Data, Data Footer, Group…
read the full FastReport overview →
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Frequently asked questions
Is diagram-design or FastReport more popular?
diagram-design has 64,318 GitHub stars and FastReport has 3,104. diagram-design has the larger community by that measure.
Are diagram-design and FastReport free?
Both are open source. diagram-design is licensed under MIT and FastReport under MIT. Neither carries a licence fee.
What is the difference between diagram-design and FastReport?
diagram-design is written in HTML and FastReport in C#. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, diagram-design or FastReport?
Choose diagram-design if you want the larger community (64,318 stars) or its MIT licence terms. Choose FastReport if its feature set, stack or MIT licence fits better. Both are self-hostable.