How to Merge Subtitle Screenshots Into One Tall Image
Combine multiple movie or video subtitle screenshots into a single tall image. Free, runs in your browser, no account, no watermark and no upload to a server.
Sometimes three scenes from a film tell a small story together. Three screenshots, three separate messages, three times saying "look at this". And then you are left wondering how to turn that into one image you can just send.
With subtitles it is a bit more work. A movie screenshot is usually too big to post as-is — most of it is the scene, and the dialogue is one small line at the bottom. So you crop it first. In Paint, in Preview, in the Photos app. One screenshot at a time.
Subtitle Stitch does that in a single step. Throw the screenshots in, get a long strip with every subtitle underneath the last, and save it as one image.
And it all happens in your browser. The images are not uploaded to a server, there is no account to create, and no watermark lands on the result.
What the tool actually does
Three things, and that is it.
It takes multiple image files (JPG, PNG, WEBP) and stacks them vertically into one long image. That is the merging part.
It detects the subtitle area and crops it automatically. A movie screenshot is usually too large to post — most of it is the image, and the subtitle is one line at the bottom. Skip the crop and you get a wide image with a black band.
And everything is processed locally in your browser. No upload, no waiting, no size limit imposed by a server.
Merging screenshots is not burning subtitles into a video
This is an easy mix-up, and it is worth being clear about because most results for "merge subtitles" are not what you want.
Search for "add subtitles" or "burn subtitles into video" and you will land on video editors. They take a video file, lay a text track underneath, and re-render everything. That is a different tool with a different job, and it needs a video, not a handful of images.
What happens here is simpler. You already have the screenshots you want to show. You just want them stacked. No video, no editing timeline, no rendering.
If you genuinely need a video file with subtitles burned in, the video editors are the right place. If you want to attach three dialogue screenshots to a message, you are in the right place.
Preparing the screenshots
Use the screenshot function your operating system already has.
- Windows: Win + Shift + S
- macOS: Cmd + Shift + 4
- iPhone / iPad: side button plus volume up (or down), then swipe
- Android: power plus volume down at the same time
You can crop down to just the subtitle strip or keep the whole frame. Both work.
Order and cropping
The order of the files is the order in the result. On films where subtitles move upward, that can look wrong, so reorder the images in the preview.
Check the preview before exporting. Position and cropping can still be adjusted there.
Exporting
Save the result as PNG, JPG or WEBP, at double resolution if you want it sharper.
No watermark. No daily export limit.
Frequently asked
Is the tool free?
Yes. No account required, no watermark, and there is no daily export limit.
Do I have to upload my images?
No. The processing happens entirely in your browser. Your images are never sent to a server.
How many images can I merge?
Up to 50 images per run.
Does it work on a phone?
Yes. It runs in the browser, so it behaves the same on a phone, a tablet and a desktop. The order is the order you uploaded them in.
Which image formats are supported?
JPG, PNG and WEBP.
Can it pull subtitles straight out of a video?
No. This is a tool for images. Take screenshots of the scenes you want first, then merge them.
Try it
Drop your screenshots into Subtitle Stitch and see what comes out. The first stitch takes about a minute once you have your images lined up.