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.
There are scenes from a film you want to show someone. Three or four screenshots, and suddenly you are scrolling an album through a conversation. It is long, it takes up space, and the person on the other end has to swipe through each one.
With subtitles it is a little more awkward. A capture from a film is not an image you post as-is — two thirds of it is the scene, and the line of dialogue sits at the bottom. So you crop it first. In Paint, in Preview, in the Photos app. One capture at a time.
Subtitle Stitch does that in a single step. Drop in the captures, get a vertical strip with every subtitle underneath the last, and save it all as one image.
And all of it happens in your browser. The images are not sent to a server, there is no account to create, and no watermark ends up 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 film capture is generally too large to post as-is — 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 sending, no waiting, no size limit imposed by a server.
Merging captures is not burning subtitles into a video
The mix-up is natural, but it is worth being clear about because most results for "merge subtitles" will not help you.
Search for "add subtitles" or "burn subtitles into video" and you land on video editors. They take a video file, put a text track underneath, and render everything again. Different tool, different job — and it needs a video, not a few images.
What happens here is simpler. You already have the captures you want to show. You just want them stacked. No video, no timeline, no rendering.
If you really do need a video file with subtitles burned in, the video editors are the right address. If you want to attach three dialogue screenshots to a message, you are in the right place.
Preparing the captures
Use the screenshot function your 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.