IRBatch

A FLIR Tools alternative for CSV export, batch processing and reports

Updated 5 November 2026

For years, the free desktop program FLIR Tools (and FLIR Tools+) was how many owners of FLIR® handheld cameras viewed images on a computer, exported temperatures and made a simple report. FLIR no longer offers FLIR Tools or FLIR Tools+: FLIR's own FLIR Tools page says the product is discontinued (read on 5 November 2026). This page sums up what FLIR offers now, what to look for in another tool, and how to do three common jobs in your browser with IRBatch: CSV export, processing many images at once, and a report with your own logo.

What FLIR offers now

FLIR's current desktop software for its radiometric images is FLIR Thermal Studio. It is offered in several plans, from a free Starter plan to annual subscriptions; the cheapest subscription above Starter is the Standard plan, listed at USD 215.99 per year (as of 5 November 2026, per FLIR's Thermal Studio plan selection page, flir.com/instruments/thermal-studio-plan-selection). Check FLIR's plan page for what each plan includes. Plans and prices change, so read it again before you decide.

If your company already standardises on FLIR software, Thermal Studio may well be the right choice. Many people, though, only need a few specific jobs done on their radiometric JPGs: the numbers, for a lot of images, and a tidy PDF. Whichever tool you look at, the questions below help you compare.

What you actually need from the files

A FLIR radiometric JPG looks like a normal photo, but it also carries the raw sensor value of every pixel and the camera's calibration constants and settings (emissivity, reflected temperature, distance, air temperature, humidity). From these, the temperature of every pixel can be recalculated. So ask:

  • Can it read the original files from your camera model?
  • Can it give you a table you can open in Excel or another spreadsheet?
  • Can it handle 50 or 300 images in one go, not one at a time?
  • Can it produce a report that carries your name and logo, not someone else's?
  • Where do your images go — do they stay on your computer, or are they uploaded?

Option 1: free open-source tools (technical)

If you are comfortable with the command line or with ImageJ/Fiji, free open-source projects such as ThermImageJ (a plugin for ImageJ) or flirimageextractor (Python) can extract temperatures from FLIR radiometric JPGs and can be scripted for batches. They rely on ExifTool and need some setup, and they do not make a finished PDF report. For a researcher or a programmer they are a good fit; for a busy electrician or home inspector they are usually too much work.

Option 2: IRBatch in your browser

IRBatch is our tool, so we are not neutral. It was built around the three jobs named at the top of this page. It runs in a browser tab, with nothing to install, and reads the files on your computer without uploading them:

  • CSV: one summary table for all images — file, capture date, camera, maximum, minimum, mean and center temperature with positions, and the parameters used.
  • Batch: up to 500 files at a time, with one emissivity and reflected temperature override for the whole batch when the values saved in the camera were wrong.
  • Report: a PDF with one page per image — thermal image with scale, visual photo when the file has one, the measurements and parameters, plus your logo, title and note.

It also exports the full temperature matrix of every image (one CSV per image, in a ZIP).

How to switch in five steps

  1. Copy the original images from the camera to your computer. On most FLIR handheld cameras they sit in a DCIM folder on the memory card or internal storage and have names like FLIR0123.jpg or IR_0123.jpg. Do not use screenshots or files re-saved by an editor — they lose the thermal data.
  2. Open IRBatch and drop one image into the page. The free preview shows the thermal image, the maximum, minimum and center temperature, and the temperature under your cursor. If the file is not supported, you get a message saying why.
  3. If the emissivity or reflected temperature set in the camera was wrong for the surface you measured, enter the correct values under Settings. They apply to every image in the batch.
  4. Select all images in the folder (Ctrl+A or Cmd+A in the file dialog) and drop or open them. With a Pro license, IRBatch processes all images and lists them in a table; a file that fails does not stop the others.
  5. Download the summary CSV, the ZIP of temperature matrices or the PDF report — or all three.

What IRBatch does not do

To keep expectations honest: IRBatch does not read SEQ or CSQ sequences or thermal video, it does not read DJI R-JPEG files from DJI's own thermal cameras, and some older FLIR models with a different raw format (for example the FLIR i7) are not supported yet. It does not add measurement boxes or lines, and the report contains measurement data only, with no interpretation — the conclusions stay with you.