no bleeding between files
Why pasting two SVGs together goes wrong
Two SVG files can each be perfectly valid and still break the moment they share a document. Both may define a gradient with id "a", and both may carry an Illustrator stylesheet where everything is called .st0. Concatenate them and the second gradient quietly resolves to the first, while one stylesheet overrides the other — the file opens fine and simply looks wrong.
This tool renames every id and class in each source file with its own prefix and rewrites every reference to match: url() values, href fragments, inline styles and the selectors inside style elements. Each file is then placed in its own nested svg, which gives it a private viewport for its coordinate system.
three steps
How to merge SVG files
Drop the files
Add up to 12 .svg files — they stay on your device.
Arrange them
Row, column, grid or stacked, with the spacing you want.
Download
One SVG containing all of them.