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FastStone Image Viewer vs Mailvelope

Professional comparison and analysis to help you choose the right software solution for your needs.

FastStone Image Viewer icon
FastStone Image Viewer
Mailvelope icon
Mailvelope

FastStone Image Viewer vs Mailvelope: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature FastStone Image Viewer Mailvelope
Sugggest Score
Category Photos & Graphics Security & Privacy
Pricing Open Source

Product Overview

FastStone Image Viewer
FastStone Image Viewer

Description: FastStone Image Viewer is a free, lightweight image viewing and organizing program. It has an intuitive interface and supports a wide range of image formats like JPEG, GIF, PNG, BMP as well as raw formats from major DSLRs. Useful features include batch editing tools, screen capture, color schemes, and the ability to view images in full screen slideshows.

Type: software

Mailvelope
Mailvelope

Description: Mailvelope is an open source browser extension for end-to-end email encryption. It integrates with webmail providers like Gmail and Outlook to allow users to easily send and receive encrypted emails using OpenPGP.

Type: software

Pricing: Open Source

Key Features Comparison

FastStone Image Viewer
FastStone Image Viewer Features
  • Supports all major image formats (JPEG, TIFF, PNG, GIF, BMP, PCX, TGA, WMF, ICO, etc)
  • Powerful image viewing features (zooming, panning, rotating, scrolling, drag-and-drop, etc)
  • Many image processing tools (resize, crop, color adjustments, add text/watermark, etc)
  • Batch conversion tools for converting images between formats, resizing, renaming, etc
  • Screen capture tool
  • Slideshow function
  • Basic image editing (brightness, contrast, saturation, etc)
  • Support for RAW files
  • Thumbnail preview pane
  • EXIF and IPTC metadata viewer
Mailvelope
Mailvelope Features
  • End-to-end email encryption
  • Integrates with webmail providers like Gmail, Outlook, Yahoo Mail
  • OpenPGP and S/MIME support
  • Digital signature of emails
  • Encryption of email attachments
  • Key management

Pros & Cons Analysis

FastStone Image Viewer
FastStone Image Viewer
Pros
  • Free and open source
  • Intuitive and easy to use interface
  • Fast and lightweight
  • Supports many image formats
  • Lots of useful viewing, editing and organizing features
Cons
  • Lacks some advanced editing features of paid software
  • No cloud sync or storage features
  • No mobile app version
  • Limited batch editing capabilities compared to Lightroom
Mailvelope
Mailvelope
Pros
  • Free and open source
  • Easy to use
  • Secures email communications
  • Wide support for email providers
  • Active development and support
Cons
  • Requires recipient to also have Mailvelope
  • Limited customization options
  • Only available as browser extension

Pricing Comparison

FastStone Image Viewer
FastStone Image Viewer
  • Not listed
Mailvelope
Mailvelope
  • Open Source

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