Use this free image label annotation alignment tool in your browser. No sign-up, no download and no upload: everything runs on your own device, so your data stays private.
What this tool does
Scatter plots fail when labels pile on top of each other, and hand-nudging each one wastes time. This tool draws each point with a leader line to its label, and when two labels would collide it shifts the later one upward until it clears. The result is a readable annotation layer you can copy into a figure draft.
How to use it
- Paste or type your point list (x, y, label) in the box above.
- Adjust any settings, such as cutoffs, scales or styles, to match your data.
- Click the run button and read the output below the tool.
- Check the summary numbers before you copy anything into a document.
- Copy the output, code or image into your figure, slide or report.
Worked example
Enter Alpha at (10,20), Beta at (30,22) and Gamma at (32,24). Beta and Gamma sit almost on top of each other, so the tool lifts Gamma’s label above Beta’s instead of stacking them. Delta at (70,80) stays put because nothing crowds it.
Tips for better results
Short labels collide less; abbreviate long sample names in the plot and spell them out in the caption.
Honest limits
Collision handling is vertical-only and greedy: very dense clusters will still need manual layout in a full figure tool.
Choosing the right settings
Start with the default values. They are chosen to show a sensible result at once, so you can see the layout before you touch your own data. Then change one setting at a time. Changing one thing at a time is the fastest way to learn what each control does, and it stops two changes from cancelling each other out. If the output looks wrong, check the input format first: a missing comma, a swapped column or a stray space causes most errors, and the tool reports what it received in its summary line.
Using the result in a figure
For a figure, keep the output simple. One message per figure, short labels, and a caption that states the method and the settings you used will serve readers better than a dense, decorated chart. If a journal or supervisor will see the result, note the tool name, the input values and any cutoff in your methods or caption, so the figure can be reproduced later. That habit also helps you: six months from now, the caption is the only record of how the figure was made.
Common questions
Do I need an account? No. The image label annotation alignment tool runs entirely in your browser with no sign-up and no saved data.
Is my data uploaded anywhere? No. Your point list (x, y, label) stays on your device, which is why the tool is safe for unpublished work.
Can I use the output in a paper or presentation? Yes. The output is yours to reuse; just check it visually once, note the settings in your caption, and credit the method, not the tool, in your references.
What if the result looks wrong? Check the input format first, then change one setting at a time. Most errors come from a missing comma, a swapped column, or a value outside the expected range, and the summary line under the tool shows what it actually received.
Try the image label annotation alignment tool above with the sample data, then with your own. It is free, it needs no account, and it works in any modern browser.
When you reuse the result, keep a short record of the inputs and settings you used. A one-line note in your project file, such as the data pasted, the cutoff chosen and the date, is enough to reproduce the figure later. If a collaborator questions a number, that note lets you rebuild the exact output in seconds instead of guessing what changed.
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