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Software · Photo & graphics

Blackbody

Inspect thermograms.

  • Completely free
  • Linux
  • Open source

At a glance

Blackbody is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (EUPL-1.2) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

About

Blackbody is a viewer for FLIR, Fluke, HTI, and IRG thermograms and other thermal images. Explore temperatures under the cursor, render to different palettes and ranges, overlay the visible-light photo, and inspect embedded measurements and camera metadata. Blackbody reads thermograms from many FLIR cameras, including the visible-light photo, and also opens Fluke thermograms from cameras such as the Ti400, Ti401p, TiS75+, and Ti25, HTI / ToolTop thermograms, and IRG thermograms such as the Topdon TC004. Plain thermal data can be imported and exported as single-band TIFFs or 16-bit PNGs. Features: Inspect the temperature under the cursor, in celsius, fahrenheit, or kelvin View embedded measurements: spots, lines, and areas Overlay view (Picture-in-Picture or MSX) combining thermal and visible images Render to the camera's embedded palette or many built-in ones, including inferno and turbo Adjust the temperature range to make details stand out Metadata panel with camera info and GPS location, openable in a map Export renders to PNG and thermal data to TIFF or 16-bit PNG Zoom, pan, and browse through a folder of thermograms Translated to multiple languages

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 8 November 2026
  • Description from Flathub — AppStream (Flathub)

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