Trim Lines
Trim leading and trailing whitespace from every line of text at once. Perfect for cleaning indented or padded lists and data. Runs in your browser.
How to use Trim Lines: Open Trim Lines — it runs entirely in your browser with no setup. Paste or type your input into the text area, or upload a file where supported. Set any options you need. The result appears in the output panel — there is no upload step and no waiting on a server. Everything runs inside your browser, so your data never leaves your device.
Tip: drag a text file onto the box above to load it — drop several to append them in order.
Trimmed text
Trim leading and trailing whitespace from every line of text at once. Perfect for cleaning indented or padded lists and data. Runs in your browser. Trim Lines is a free, browser-based tool in the Filevane text tools collection — there is nothing to install, no account to create and no watermark on your results. It works on desktop, tablet and mobile, and because the work happens on your own device it stays fast even with large inputs.
How to use Trim Lines
- Open Trim Lines — it runs entirely in your browser with no setup.
- Paste or type your input into the text area, or upload a file where supported.
- Set any options you need. The result appears in the output panel — there is no upload step and no waiting on a server.
- Review the output instantly; large inputs are handled locally without lag.
- Copy the result to your clipboard or download it. Your data never leaves the page.
Why use Trim Lines?
- 100% free with no limits, no sign-up and no watermarks.
- Private by design — your data are processed in your browser and never uploaded to a server.
- Fast and lightweight, with instant results even on a phone or a slow connection.
- Works everywhere — any modern browser on Windows, macOS, Linux, Android or iOS.
- Part of a full text tools suite, so related trim lines tasks are one click away.
Is it private and secure?
Your privacy is built in. Trim Lines runs completely on your device, so whatever you enter stays in your browser and is never transmitted, logged or stored on any server.
Network activity: none. Nothing is sent and nothing is fetched. This tool makes no network request at all once the page has loaded — which is why it keeps working if your connection drops.
You do not have to take that on trust — our privacy proof page publishes the Content-Security-Policy that enforces it, lists every third party it permits, and shows how to verify the whole claim yourself.
Learn more
Is It Safe to Paste Production Data Into Online Tools? — JWTs, API responses and env files get pasted into online formatters every day. Here's what actually happens to that data and how to check before you paste.
Frequently asked questions
What does trimming do?
It removes spaces and tabs at the start and end of every line, without touching spaces inside the line or removing blank lines.
How is this different from Remove Extra Spaces?
Trim only affects the edges of each line. Remove Extra Spaces also collapses repeated spaces inside the text.
Related tools
See all free text tools or browse the full tool catalogue.