What changes in this tool
Indent a simple SVG element tree for editing. Indentation and line breaks expose structure while preserving the supported input tokens. An SVG group nested inside another group becomes easier to read when indentation reveals the hierarchy. Geometry, coordinates, fills and transforms are left as written. The output can therefore help manual editing but will not simplify a path or shrink a vector drawing aggressively.
Know the format
SVG is an XML vocabulary for vector graphics. Its elements can describe geometry, text, paint, transforms and reusable definitions, while attributes determine the actual drawing. A formatted SVG is easier to inspect because nested groups and shapes are visible; a compact version can reduce whitespace between element-only nodes. Neither operation changes path coordinates, simplifies geometry or removes unused definitions. This matters because visual optimizers make many additional decisions that require understanding the rendered image. The editor requires a simple well-formed svg root and refuses declarations, comments and CDATA. After conversion, render the file at several sizes and check any text, viewBox and references.
A dependable workflow
Formatting is most useful during review or debugging, when indentation can expose a missing nesting level or an unexpected sibling. Paste a complete, representative fragment and run the formatter once. Read the output from the outermost structure inward, paying attention to where each element, block or clause begins and ends. This page deliberately avoids pretending to be a compiler for every possible extension of the language. It may reject source whose meaning depends on advanced constructs. After copying the result, run the normal validator or test suite for the project in which it will be used. If you plan to commit the formatted text, inspect the diff so changes in layout do not hide an accidental change in a literal or data value.
Check the result
Keep the original next to the output and test a small known example before handling a large document. Compare meaningful content, not only file size or the number of lines. Check names, quoted strings, non-ASCII characters, line endings and any repeated fields after the transformation. A syntactically readable result does not validate a schema, prove that code executes, or establish that data is safe to publish. This site processes the entered text in the browser and displays the result as text, but the copy you paste into another application will follow that application’s rules. If the tool rejects an input, do not remove unexplained characters merely to get an output: identify which construct is outside the supported subset and use a dedicated parser when necessary.