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FlowViz vs Photostar

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

FlowViz compared with Photostar
DetailFlowViz logo FlowVizPhotostar logo Photostar
What it doesFree live Mermaid diagram editor with no signup required Free online Photoshop alternative for photos and PSD files
StageNot given Not given
FoundedNot given Not given
Based inNot given GB
Pricing modelFree Free
PricingNot given Not given
Key features
  • Live preview as you type
  • 21 diagram types including flowcharts, sequence, class, state, ER, Gantt, git graph, mindmap and timeline
  • Two-way editing for flowcharts
  • SVG and PNG export
  • Share diagrams as URLs with embedded diagram content
  • Built-in template picker and cheatsheet
  • No account or signup required
  • Works entirely in browser with local storage
  • Open Mermaid Live Editor links
  • Mermaid v11 syntax support
  • PSD import and export with editable text and shapes
  • Layers, masks and adjustment layers
  • On-device background removal and subject selection
  • Healing, cloning and object removal
  • Smart objects and smart filters
  • Offline editing after resources are cached
  • Support for RAW camera files
  • 8-bit and 16-bit editing
  • Multiple export formats including PNG, JPEG, WebP, TIFF and PDF
  • Editable design templates
What makes it different
  • No signup, paywall, or data collection required
  • Diagrams stay in your browser's local storage by default
  • Two-way editing that updates code when you edit the canvas
  • Live preview with no render button required
  • Clean SVG export for professional use in docs and slides
  • Completely free with no account required or watermarks on exports
  • All editing happens locally on your device without uploading photos
  • Works offline after resources are cached
  • Opens and saves layered PSD files with editable text and shapes
  • Open-source components with credited licenses
Community votes00
DR (Domain Rating by Ahrefs)10 −4 (down) since last check19 +19 (up) since last check
Trust Flow (Majestic)50
Citation Flow (Majestic)270
Referring domains (Majestic)760

4 details filled in for both companies.

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