Causal vs Photopea: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Causal and Photopea — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Causal
Causal Software Limited
An infinite AI canvas for creative planning, where notes, files, images and links sit in one spatial workspace an agent can read and build on.
Key features
- Infinite Spatial Canvas: A freeform, unbounded board where notes, images, links and files are arranged by meaning, so layout itself becomes the organisation rather than a folder hierarchy.
- Context-Aware Agent: The AI reads the whole canvas and understands how ideas connect, then answers questions and researches topics with the surrounding board as context.
- Native Output Generation: Prompts are turned into canvas content directly, with the agent creating notes, files and web-link cards and placing them where they belong instead of returning plain text.
- Rich File Previews: PDFs, Word and Adobe documents, markdown, spreadsheets, images and video up to 20 MB open fullscreen in-app, and markdown and CSV files can be edited in place and saved back to the file.
- Dual Text Editing: Quick notes live directly on the canvas while longer pieces open into a full-page editor, both sharing headings, lists, checkboxes, quotes, code blocks, highlights, images and links.
- Structure Tools: Collections pack related nodes into tidy columns, nested canvases give a sub-topic its own space, and an unsorted tray parks anything not ready to be placed.
- One-Click Sharing: Any canvas becomes a read-only link that recipients open without an account, covering nested canvases too, and sharing can be revoked at any time.
- Template Library: Ready-made boards for app flows, app plans, brand research, branding boards, competitor research, onboarding, storyboards, video briefs and plans, website moodboards and website plans.
Best for
- Product Planning: Map every screen in an app and the routes between them, then keep features, screens and shipping order in one view instead of three separate documents.
- Brand Development: Collect the brands, palettes and voices you are borrowing from, then settle type, colour and marks in one place the whole team works from.
- Competitive Research: Put rival products side by side with your own on a single board and find the gap you can actually take.
- Video and Film Pre-Production: Block out a shoot frame by frame, hand an editor references, tone and deliverables on one canvas, and follow a video from script to final cut with every asset attached to its step.
- Website Design Prep: Gather reference sites, type and colour a build should feel like, then lay out every page and its contents before the first component is built.
- Team Onboarding: Walk a new starter through the tools, files and people one frame at a time on a shareable board.
Photopea
Photopea
Browser-based PSD-compatible online photo and graphics editor for raster and vector files, free to use in your browser.
Key features
- PSD/Vector/Sketch Support: Opens and exports popular industry file formats (PSD, AI, Sketch) so users can work with files from Photoshop and other design tools without conversion.
- Layer-Based Editing: Provides layers, masks, blending modes and layer groups to enable non-destructive, multi-layer composition workflows comparable to desktop editors.
- Core Photo Tools and Filters: Includes selection tools, crop/resize, adjustment layers, retouching tools, filters and effects for comprehensive photo editing and corrections.
- Text and Vector Tools: Offers text layers, shape and pen tools for vector artwork and layout work alongside raster editing in the same project.
- No-Install Browser Operation: Runs entirely in modern web browsers, allowing immediate access across platforms (Windows, macOS, Linux) without installation.
- File Import/Export and Asset Handling: Enables importing images from local files or URLs and exporting to various raster/vector formats for web and print use.
- Integration & Automation Options: Community projects and GitHub references show usage as an embeddable editor, Electron desktop wrappers, and headless/API-style automation options.
- Community & Support Channels: Maintains a public GitHub repository for bug reports, feature requests, and discussions to gather user feedback and improvements.
- Full-featured in-browser image editor with tools for selection, painting, retouching, and compositing
- Support for professional file formats including PSD, AI, and Sketch (import/export)
- Standard image format support (PNG, JPG) and direct editing of uploaded images
- Layer-based editing with text, filters, effects, cropping and resizing
- Runs entirely in the browser with no installation required; can be wrapped in Electron for desktop use
- Community-facing GitHub repository for bug reports, feature requests and discussions
- Integrations and community projects (Obsidian plugin, Puter integration, Electron wrapper, headless/automation projects)
Best for
- Editing and retouching photos in the browser without installing desktop software, for quick fixes or detailed photo workflows.
- Opening and modifying PSD and Sketch files when a user needs to view or edit designs but doesn't have Photoshop or Sketch installed.
- Cross-platform graphic design work on Windows, macOS, or Linux via the browser or Electron wrappers to provide native-like access.
- Embedding or integrating the editor into other apps or workflows (plugins, Obsidian integration, Electron wrappers) to enable inline image editing.
- Automating image workflows by using community headless/automation wrappers to perform batch edits or scripted manipulations.
- Creating mockups, marketing assets, or social media images quickly using layer-based layouts, text, and export to common image formats.
- Providing an accessible tool for students and educators to teach design and image-editing concepts using a free, zero-install editor.
- Edit and retouch photos directly in the browser without installing native software
- Open, modify and export PSD/AI/Sketch files for cross-tool workflow compatibility
- Embed or wrap Photopea into desktop or web apps via Electron wrappers or integration plugins
- Automate image-editing workflows using community headless/automation projects
- Use within note-taking or web platforms (e.g., Obsidian, Puter) to enable inline image editing