Fish Audio records 8,557,159 monthly visits with +1.6% month-over-month growth and Freemium pricing. OpenFlowKit records 1,437 monthly visits with -70.3% growth and Free pricing.
Studio-grade AI text to speech and voice cloning
The open-source diagramming studio for builders
| Dimension / Metric | | |
|---|---|---|
| Official Domain | fish.audio | openflowkit.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 8.56M (8,557,159) | 1.44K (1,437) |
| MoM Traffic Delta |
| +133.4K (+1.6%) |
| -3.41K (-70.3%) |
| Primary Market & Share | 🇺🇸 United States (15.6%) | 🇻🇳 Vietnam (92.4%) |
|---|
| Direct Visits / mo | 3.7M | 614 |
|---|
| User Rating | 4.4 | 4.6 |
|---|
| Supported Platforms | Website | Website |
|---|
Studio-grade AI text to speech and voice cloning
Type or paste a script and generate natural narration, with inline emotion and delivery tags such as [whispering], [angry] or [laughing].
Create a usable voice clone from a short audio sample and reuse it across scripts and languages.
Browse and use a large catalog of community voices covering many languages and character styles.
Transcribe audio with multilingual support and emotion or speaker cues for downstream editing.
The open-source diagramming studio for builders
Paste a public GitHub repository and OpenFlowKit reads its files in the browser to draw modules and connections, with every arrow cited to the source line it came from.
29 diagram tools for Claude Code, Codex, Cursor, VS Code, Windsurf or any MCP client, so an agent can draw on the diagram you have open, one undo away.
Write or paste Mermaid, D2 or Structurizr; the text and the canvas remain the same diagram, so you can round-trip between syntax and visuals.
Move from system context to containers to components in linked views that all stay grounded in a single architecture model.
Industry-leading voice cloning and text-to-speech quality, but lacks Fish Audio's open-source model flexibility and self-hosting options.
SpecialistTurn scripts into studio-quality AI avatar videos in minutes
#2SpecialistText to speech and voice AI across every device
SpecialistReal-time AI voice changer and soundboard for gaming and streaming
Delivers ultra-low latency real-time streaming speech generation via API, though less focused on consumer dubbing workflows.
Free / Open-sourceFree online text-to-speech with hundreds of AI voices across more than 100 languages
AI diagrams and technical design docs built from your code and systems
AI diagramming, mind mapping and project tools with 50,000+ templates
Free / Open-sourceOpen-source AI automation that unifies agents, flows and 770+ app integrations
Online text-to-speech and embedding platform suited for podcasting and content creators, but less customizable for developers.
AI-powered visual collaboration for diagrams, mind maps, and charts
SpecialistSpecializes in Japanese voice generation and real-time audio interpretation, offering strong bilingual voice cloning capabilities.
Industry-leading voice cloning and text-to-speech quality, but lacks Fish Audio's open-source model flexibility and self-hosting options.
SpecialistText to speech and voice AI across every device
Delivers ultra-low latency real-time streaming speech generation via API, though less focused on consumer dubbing workflows.
Free / Open-sourceFree online text-to-speech with hundreds of AI voices across more than 100 languages
AI diagrams and technical design docs built from your code and systems
AI diagramming, mind mapping and project tools with 50,000+ templates
Free / Open-sourceOpen-source AI automation that unifies agents, flows and 770+ app integrations
Online text-to-speech and embedding platform suited for podcasting and content creators, but less customizable for developers.
AI-powered visual collaboration for diagrams, mind maps, and charts
SpecialistSpecializes in Japanese voice generation and real-time audio interpretation, offering strong bilingual voice cloning capabilities.
