4629 · Developer Tools · v1.0.0
Web Developer Toolbox
Small transformations. One precise workspace.
Normalize line endings, trim trailing whitespace, sort or deduplicate lines, change case and build URL slugs. Launch related specialized tools from one workspace.
Text-only workspace. Never executes input. General limit: 200,000 UTF-16 units per editor; some operations have tighter limits.
Private session · history disabled
Opt in to store up to five recent text transformations on this device. Never stored on an account or synchronized. Files are never included. Disable history stops new saves; Clear history deletes saved items.
How to use Web Developer Toolbox
Paste input, select a command and its options, then run the transformation. Review diagnostics before copying or downloading the result. Input is not executed.
Line sorting is deterministic code-unit order, not natural-language collation. Deduplication compares exact whole lines. Slug conversion normalizes to NFKD, removes combining marks, lowercases and joins letters/numbers with hyphens; it is deliberately lossy. Text case conversion is not always reversible. Never apply whitespace cleanup to source code without checking string literals.
Privacy and boundaries
Editor contents stay in your browser. Transformations run in a disposable worker and are never sent to a formatting or AI service. History starts disabled; enabling it writes text to local browser storage only. Clearing that history removes this tool’s saved entries, not data saved by other applications. The surrounding website may load its normal navigation and analytics, but the utility workspace is excluded from content-interaction capture.
Use the labeled operation selector for the available capabilities. Keyboard users can reach every control with Tab; Ctrl or Command plus K opens the command palette. Copy requires clipboard permission. Download creates a local text file. Clear removes the current workspace; it does not automatically delete an opted-in history. Inputs and outputs are always rendered as text, never as a runnable preview.
When should a small text transformation be used?
Use it when its explicit rule matches the task. Keep the original when a transformation drops distinctions such as case, spacing or repeated lines.