Vega XML Editor & Validator
Fast XML editor with XSD
Only for Mac
Free · In‑App Purchases
Mac
Vega XML is a native macOS editor for people who work with XML every day - sitemaps, SVGs, XLIFF files, configuration, schema‑driven exports, anything XML.
Built around a virtualized outline that stays smooth on documents with tens of thousands of nodes, Vega lets you read, edit, validate, and reorganize XML without waiting for a beachball.
FAST ON BIG DOCUMENTS
The outline is a flat, virtualised list, not a nested SwiftUI DisclosureGroup, so a sitemap with 40,000 URL siblings opens in seconds rather than minutes. Nodes with many children are displayed in groups of 200, so the UI never has to instantiate ten thousand rows at once. Background parsing keeps the window responsive while the document loads.
REAL XSD VALIDATION
Drop in an .xsd file and Vega validates against it live, using libxml2 under the hood. Errors surface inline on the offending tree node, plus a panel that lists every problem with line numbers. Each edit triggers a debounced re‑validation, so you see issues as you fix them.
SCHEMA LIBRARY
Save the schemas that you use repeatedly, such as sitemap, SVG, XLIFF and custom company formats, into a personal library. The library remembers which schema goes with which document, so the next time you open it, the validation process will already be running.
INSPECTOR FOR EVERY NODE
Click a node to see its attributes in a sortable table, edit its name and value inline, manage attached comments, and switch the node's kind. Elements, text, CDATA, comments, and processing instructions are all first‑class.
TREE OPERATIONS THAT FEEL RIGHT
Drag any element to a new parent. Use the single context menu to duplicate, delete and reorder. You can undo every action - up to 50 steps - so you can experiment without fear of making permanent changes.
SEARCH THAT KEEPS UP WITH TYPING
The search field scans element names, text content, and attribute names/values across the entire document. Matches highlight in the outline; validation errors filter alongside. Debounced and cached so even multi‑megabyte documents stay fluid as you type.
PRIVACY
Vega does not send your documents anywhere. Your Schema Library lives in your private iCloud (CloudKit) container so it follows you between your Macs; nothing is shared with us or anyone else. There is no analytics SDK, no account, no sign‑in.
BUILT FOR
• Web developers debugging sitemaps and RSS feeds
• Localization engineers working with XLIFF
• Designers and developers editing SVG
• System integrators reviewing API responses and configuration
• Anyone who has ever opened a 50 MB XML file and watched their previous editor freeze
If your XML workflow involves files an order of magnitude larger than the examples in tutorials, Vega XML was built for you.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Thank you for using Vega XML. If you have any comments or suggestions, please email us at info@swiftlab.dev
This is bugfix release with small number of fixes and improvements.
The developer, Vladimir Bartos, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Vladimir Bartos
- Size
- 4.9 MB
- Category
- Productivity
- Compatibility
Requires macOS 26.4 or later.
- Mac
Requires macOS 26.4 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Vega XML Tip Generous $5.99
- Vega XML Tip Enormous $39.99
- Vega XML Tip Small $1.99
- Copyright
- © 2026 Vladimir Bartos