Tutorial

Batch-Generating Hundreds of Images from a Text List

July 2026 • 8 min read

This is the feature that turns a text-to-image tool from a novelty into a genuine time-saver. One line of text becomes one image file. Paste a list of 200 names, click once, and download a ZIP of 200 PNGs. The mechanics are trivial; the value is in knowing which jobs fit this shape and which traps to sidestep before you generate the whole batch.

The core idea: one line, one file

The rule is as simple as it sounds. Every newline in the input starts a new image. Three lines produce three separate PNGs, each containing only its own line, all sharing identical font, colour, padding and sizing settings.

That shared-settings part is what makes it worth doing. If you generated 200 name tags by hand, some would drift — a slightly different size here, a nudged margin there. Batch generation guarantees they are mechanically identical, which is exactly what you want for anything printed side by side.

It also means the settings you choose apply to the longest line as well as the shortest, which is the single most important thing to plan for.

Jobs that fit this perfectly

Event name tags and place cards

Export the guest list from your spreadsheet as one name per line, paste, generate, download. Drop the PNGs into a label template or a print layout. For a 150-person event this replaces an afternoon of copy-paste with about four minutes of work.

Price labels and shelf tags

Retail and market stalls need many small, consistent labels. Generate them from your product list, and regenerate the whole set in seconds whenever prices change — which is the real win, because manual labels never get updated consistently.

Vocabulary and flashcards

One word or phrase per card, as image files ready to import into a flashcard app. We go deeper on this workflow in the flashcards guide.

Quote sets for scheduled posting

If you post a daily quote, generating a month's worth in one sitting means you can load them all into a scheduler and forget about it. Consistent styling across the set also makes your feed look deliberate rather than improvised.

Subtitle and caption frames

Video editors sometimes want caption lines as transparent PNGs to drop onto a timeline, rather than fighting an editor's title system. One line per subtitle, transparent background, done.

Numbered or lettered sets

Table numbers, station markers, bingo tiles, seat labels, classroom group letters. Anything that is "the same design with a different character in it" is a batch job.

Prepare your list before you paste

Ninety percent of batch problems are input problems. Spend a minute here and the generation step becomes trivial.

  • Strip blank lines. An empty line may produce an empty image, leaving gaps in your numbering that are confusing to sort out later.
  • Kill trailing spaces. Invisible in your source, but they affect centring and can make a line look subtly off-centre compared to its neighbours.
  • Watch for stray characters. Copying from a spreadsheet can bring along tabs or quote marks. Paste into a plain text editor first if you are unsure.
  • Check your longest line. Sort the list by length and look at the extremes. This one check prevents the most common batch failure, described next.
  • Do a test run of five. Take the shortest, the longest, and three typical entries. Generate those five first and inspect them. Then run the full list.

The width trap

This is the mistake worth understanding properly, because it is not obvious until you open the files.

With a fixed width, every image comes out the same dimensions — ideal for grids, print templates and anything where uniform size matters. But a long entry may not fit, and will either overflow or be clipped. Set the width for your longest line, not your average one, or you will discover that "Bartholomew Fitzgerald-Wynne" is missing its last few letters while the other 199 tags are perfect.

With auto-fit width, each image is only as wide as its own content. Nothing ever gets clipped, and the files are smaller. The trade-off is that your images now have varying dimensions, so they will not tile neatly into a uniform grid.

The practical rule: use fixed width when the images go into a layout that expects consistent sizes, and auto-fit when they will be placed individually.

A middle path: use fixed width sized for your longest entry, and accept extra empty space around the short ones. If the background is transparent, that space is invisible when composited, so you get uniform dimensions with no visual penalty.

File naming and ordering

Batches arrive as a ZIP, and how you handle the extracted files determines whether the next step is pleasant or miserable.

The critical thing to know is that most file systems sort names as text, not as numbers. So image10 sorts before image2, and a 300-item batch ends up in an order that looks scrambled. If sequence matters, either keep the original list open as your reference, or rename with zero-padded numbers (001, 002, …) so text sorting and numeric sorting agree.

Also worth knowing: if two lines in your list are identical, you get two identical images. Some tools will overwrite rather than produce duplicates, so if you need both copies, differentiate the lines or verify the count after extracting.

Extract into a dedicated empty folder every time. Extracting a 200-file batch into your Downloads folder is a mistake you only make once.

Practical limits

All of this happens inside your browser, using your machine's memory. That is what makes it private and free, and it is also the constraint.

A few hundred modest images is comfortable on any reasonably modern computer. Where you can get into trouble is total pixel volume rather than file count: 500 small labels is far lighter work than 500 images at 2000px wide, because every one is held in memory before being zipped.

If a very large batch feels slow or the tab becomes unresponsive, split the list into chunks of a hundred or so and run them separately. Closing other heavy tabs first genuinely helps, since they are competing for the same memory. Generating on a laptop rather than a phone helps more.

A worked example

Say you need 120 name tags for a conference, to be printed four-up on A4 sheets.

  1. Export the attendee list to one name per line. Remove blanks, trim spaces.
  2. Sort by length; note the longest name.
  3. Generate just that longest name first, adjusting font size and width until it fits comfortably with margin to spare.
  4. Paste the full list with those settings locked in. Generate.
  5. Download the ZIP, extract into an empty folder, and spot-check the longest, the shortest, and any name with accented characters.
  6. Place into your print template and print one test sheet before committing to 30 pages.

Total time is well under ten minutes, and the step that guarantees the result is step three — solving for the worst case before generating the batch.

Try a batch

Open the Text to Image Converter, paste a handful of lines, and hit generate. Use Download All as ZIP once you are happy with the settings. Nothing is uploaded — your list never leaves your machine.