Tensaku

At a glance

• Editor score
  3.1 / 10
• Pricing
  Open source
• Best for
  Linux users wanting layered screenshot editing
• Paid from
  Free
• Redaction tools
  Yes
• Facts checked
  20 Sep 2026

• Where it wins

  • Movable, reorderable layers make annotations easy to manage
  • Scrolling capture stitches vertical and horizontal screenshots
  • Blur and black-out styles support screenshot redaction

• Where it doesn't

  • Designed for Linux Wayland environments rather than broad platform coverage
  • Exports are limited to PNG, JPEG, and WebP
  • Its feature set centers on screenshots rather than wider collaboration workflows

Our verdict on Tensaku

Tensaku is an open-source screenshot annotation desktop application for Linux Wayland environments. It is aimed at users who need more control than a flat markup tool provides, particularly those working with compositors such as Sway, Hyprland, River, or Wayfire. The editor supports arrows, shapes, text, highlights, blur, redaction marks, cropping, rotation, flipping, zoom, and measurement tools. Screenshots can be saved or copied to the Wayland clipboard.

Its strongest area is layered editing. Annotations can be moved, resized, and selected together, while the layer panel provides reorder, lock, hide, and rename controls. Images can also be pasted as resizable layers, which supports composite screenshots and more deliberate visual editing. For long pages or interfaces, vertical and horizontal scrolling capture can stitch a larger image. Configurable keyboard shortcuts add control for users who prefer a keyboard-led workflow.

Tensaku is a focused choice for Linux users who want capture, annotation, redaction, and basic image preparation in one application. Secure blur and black-out styles are useful when screenshots contain sensitive areas, and the crop tool includes aspect-ratio presets and dimension controls. The main boundary is its platform focus: it is designed for Linux Wayland environments, not a broad cross-platform setup. Its exports cover PNG, JPEG, and WebP, so it fits common image-sharing needs while remaining centered on screenshot work rather than a wider collaboration or review system. Choose Tensaku for layered Wayland screenshot editing; choose another tool if platform breadth is the priority.

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Tensaku pricing

Tensaku fact sheet

Alternatives to Tensaku

• SnagitA paid desktop suite for detailed screenshot capture, annotation, OCR, and short video creation.9.3
• ShareXA highly configurable Windows capture tool for annotation, OCR, recording, and automated sharing.9.1
• ScreenpressoA broad Windows capture toolkit with strong annotation, OCR, document, and sharing features.8.9

See all Tensaku alternatives →

Featured on iTechGuides

Tensaku is listed in our Screenshot Annotation Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update