How to Use Kalmuri: Screen Capture and Recording

One good screenshot saves three paragraphs of explaining, so here is the fastest free way to take one.

Kalmuri 4.2.6 is a free Windows tool that takes screenshots and records MP4 video, and it fits in 24MB.

There is a portable build, so you can run it without installing anything.

This guide gets it working end to end in about five minutes.

What Kalmuri Actually Does

It sits quietly in your system tray as a small bar, waiting for a hotkey. Press it, and whatever you picked gets captured and saved straight to a folder, with no editor window opening first.

That is the whole idea, and it is why the tool is fast.

• Capture the full screen, a running program, a single window control, or a region you drag.
• Save images as PNG, JPG, BMP or GIF, and video as MP4.
• Pull text out of a capture with built-in OCR.
• Pin a capture on top of everything else so you can copy from it.
• Grab a colour value off the screen with the colour picker.
• Upload a shot to the web or send it to a printer without opening another app.

Setting It Up

There are two builds on the download page: a normal installer and a portable one. The portable build is the interesting one, because it does not touch your registry and it runs from a USB stick.

1. Download the portable build and extract the ZIP to any folder you can find again.
2. Run Kalmuri.exe. Nothing installs, and it starts immediately.
3. Look at the bottom-right of your screen. The Kalmuri icon appears in the system tray, next to the clock.
4. Right-click the Kalmuri bar or its tray icon. That is where every menu lives, including settings.

Taking Your First Screenshot

Press Print Screen. That is it, in the default setup.

The image lands in your chosen output folder as a PNG, named with a timestamp. No dialog appears and nothing asks you where to put it, which feels wrong the first time and excellent by the tenth.

Before you press it, though, Kalmuri needs to know what to capture. Right-click the bar, pick your capture mode, and the hotkey uses that mode from then on.

• Full screen. Everything you can see, including both monitors if you run two.
• Running program. One application's window, cropped cleanly to its edges.
• Window control. A single element inside a window, such as one panel or one toolbar.
• Region. Drag a box around anything, which is the mode most people end up living in.
• Full web page. A whole scrolling page in one image, with a large caveat below.

The Region Trick Nobody Mentions

Dragging a selection box by hand is fine until you need it to be exactly right. Kalmuri lets you nudge the selection with the keyboard once you have drawn it.

• Arrow keys. Move the selection one pixel at a time.
• Ctrl and arrow keys. Move it in bigger jumps.
• Shift and arrow keys. Resize the box instead of moving it.

If you capture the same panel repeatedly for documentation, this is the difference between five ragged screenshots and five identical ones.

Recording Video

Kalmuri records MP4 from the full screen or from a region you pick. According to the Kalmuri listing, recording leans on FFmpeg, so that is a one-time setup step before your first recording.

1. Grab the FFmpeg build and extract it.
2. Put ffmpeg.exe in the same folder as Kalmuri.exe.
3. Close Kalmuri completely from the tray, then start it again so it finds the file.

After that, right-click the bar, choose video recording, pick full screen or region, and start. Stop it with the same menu or with your stop hotkey.

The recording options are short and sensible: audio on or off, mouse cursor shown or hidden, and frame rate and quality. Higher frame rates make smoother video and much larger files, so 30fps is the sane default for a software demo.

Settings Worth Changing on Day One

Right-click the bar and open settings. Four things are worth setting before you forget they exist.

• Hotkey. Print Screen is convenient but heavily contested, so a combination like Ctrl and Shift and 4 survives longer.
• File format. PNG for anything with text or interface, JPG when the file size matters more than the crispness.
• Save location. Give screenshots and recordings separate folders, or your video folder fills with stray PNGs.
• File naming. Sequence numbers for step-by-step documentation, date and time for everything else.

Sharing, Printing and OCR

Three features live in the right-click menu that most people never find, and all three save a round trip through another program.

Upload. Take the shot, then choose the upload option, and the link goes on your clipboard ready to paste into a chat or a ticket.

Print. Send a capture straight to a printer without opening it in an image viewer first, which is genuinely useful for paper forms and receipts.

OCR. Capture a region containing text and Kalmuri can read it out as characters you can paste. It is not perfect on low-resolution text, but for an error message you cannot select, it beats retyping.

When Something Does Not Work

Video recording does nothing. Check that ffmpeg.exe is in the same folder as Kalmuri.exe, then fully restart Kalmuri from the tray rather than just closing its window.

The hotkey is dead. Something else has claimed it, often OneDrive, the Xbox Game Bar, or another capture tool left running. Assign Kalmuri a different combination in settings rather than hunting the culprit.

Nothing is being saved. The output folder is either gone or write-protected. Point Kalmuri at a folder inside your user profile, such as Pictures, and try again.

The captures look blurry or the wrong size. That is Windows display scaling on a high-resolution monitor. Right-click Kalmuri.exe, open Properties, then Compatibility, then Change high DPI settings, and let the application handle scaling.

Who Should Look Elsewhere

The tell is simple: if you find yourself opening a second program straight after every capture, Kalmuri is the wrong tool for your workflow. It captures beautifully and edits not at all.

• You annotate every shot. ShareX has a full editor and dozens of upload destinations, and it is also free.
• You want automatic effects and edge polish. Screenshot Captor is built for exactly that.
• You make animated GIFs. ScreenToGif records and edits frame by frame.
• You need scrolling capture that works today. FastStone Capture handles long pages properly, though it is paid.
• This is your job. Snagit and TechSmith Capture are the commercial end of the shelf.
• You mostly record, rarely screenshot. Cap Screen Recorder is aimed squarely at video.

There are more of them in the full screen capture category, and the wider multimedia tools section if you need converting or editing next.

Quick questions

Ready to capture properly?

Kalmuri runs silently in the tray and asks for nothing until you press a key, which is exactly what you want from a capture tool. You can see what it looks like in the two Kalmuri screenshots, and the free online tools cover anything you need to convert afterwards.

Download Kalmuri 4.2.6 and see how it fits your workflow, or tell us how it went if you have used it before.