Fanfa
Interactive and animated Mermaid diagrams
Details
- External ID
- 46147329
- Source
- HN
- Company
- —
- Product
- Fanfa
- Website domain
- fanfa.dev
- Launched
- Dec. 4, 2025
- Cohort
- —
- Upvotes
- 154
- Upvotes percentile
- 0.9303435114503816
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Enrichment
- Theme
- creative coding and visual experiments
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- interactive diagram tool for mermaid
- Manually corrected
- False
Could you build this?
Yes Fanfa is a web UI wrapper around Mermaid.js with CSS/SVG animations, canvas/MediaRecorder video export, and simple LLM prompts for diagram generation.
Discussion
20 comments analyzed.
Competitors mentioned: Go's built-in source parsing package, Claude for diagram animation, Mermaid plain rendering
Concerns raised: Animation colors don't persist across nodes, making data flow unclear, Animations create noise rather than convey useful information, Performance sluggish on Firefox/Linux with 1+ sec delays, CSS fails to load on older Chrome versions, Interface not centered/zoomed by default
Feature requests: Track data flow with consistent colors across all nodes to destination, Export animations as GIF, MP4, or video formats for slides, Stepwise reveal of subgraphs with keypress to advance, React components to embed diagrams in webpages and documentation, Customizable animation shapes, text cards, and moving part labels
Competitors
Other products that read as similar to this one — 680 launches clear the similarity bar, closest 8 shown.
Attention rank: #63 of 681 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 36 days after the earliest competitor.
- mermaid-element · github · 2026-09-10 · 8 upvotes · similarity 0.78
- nice-mermaid.nvim · github · 2026-09-20 · 34 upvotes · similarity 0.74
- Interactive, animated architecture of any HuggingFace models · hn · 2026-08-18 · 113 upvotes · similarity 0.55
- premetadated · github · 2026-09-19 · 9 upvotes · similarity 0.54
- AsciiSketch a free browser-based ASCII art and diagram editor · hn · 2026-01-13 · 53 upvotes · similarity 0.54
- Box of Rain · hn · 2026-02-14 · 24 upvotes · similarity 0.54
- A voxel editor for decorating a home for a Tamagotchi-like creature · hn · 2026-06-22 · 5 upvotes · similarity 0.53
- line-animation · github · 2026-09-23 · 16 upvotes · similarity 0.52
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.