HTML Formatter
Indent messy HTML with proper nesting and line breaks — the fastest way to read a minified template.
Data handling: Processing: this tool runs in your browser and does not send entered data to a tool-service endpoint. Site analytics, advertising, or embedded resources may still make separate requests. See the Privacy Policy for site-level details.
About HTML Formatter
Use HTML Formatter whenever you need reliable, immediate execution: Indent messy HTML with proper nesting and line breaks — the fastest way to read a minified template. Using it is a three-step job: 1) Open HTML Formatter and review the inputs, units, and data-handling notice shown on its page, 2) Enter the information requested by this tool and adjust only the options that apply to your task, 3) Review the result and use the available copy, download, or reset controls. Processing depends on the specific operation. Any external lookup or service should be identified near the tool controls.
HTML Formatter is a free, browser-based html formatter from ProfitTool. Indent messy HTML with proper nesting and line breaks — the fastest way to read a minified template. Review any usage notes shown on this page before relying on its availability. Review the tool's data-handling notice before entering sensitive information; some features store settings locally or contact external services.
Working alongside the JSON Formatter & Minifier? keep SQL Formatter open in a second tab.
Technical Limitations & Boundary Conditions
- Results reflect the inputs and assumptions shown. Fees, taxes, rates, and personal circumstances can change the real-world outcome; verify important figures with the relevant provider or authority.
- Extreme values outside standard ranges may be constrained by device memory or numerical precision boundaries.
Data Handling
Data handling depends on this tool's implementation. Read the Data handling notice above the tool before entering sensitive information. Some features run locally; others contact named providers or ProfitTool services. Site analytics, advertising, and embedded resources may also make separate requests.
Pro Tips & Best Practices
- Check the individual tool's data-handling notice before entering staging secrets or personal data.
- Use ⌘/Ctrl-A to select-all inside the editor before copying results.
- Pair it with your terminal — copy the output straight into a curl or fetch call.
Common Mistakes to Avoid
Pasting production secrets into remote tools
Anything that leaves your machine should be assumed logged. Prefer tools that run locally — verify with the Network tab.
Trusting a decoded JWT payload
Decoding is not verifying. Always validate the signature server-side before acting on claims.
Treating base64 as security
It obscures nothing. Encrypt if the data is sensitive.
People who use SQL Formatter usually reach for this next: XML Formatter handles the follow-up case.
How to use HTML Formatter
- 1Open HTML Formatter and review the inputs, units, and data-handling notice shown on its page.
- 2Enter the information requested by this tool and adjust only the options that apply to your task.
- 3Review the result and use the available copy, download, or reset controls. Processing and storage behavior vary by tool.
Already used our XML Formatter? try JSON Formatter & Minifier to finish the job.
Frequently Asked Questions
Is it safe to paste secrets or production payloads into HTML Formatter?›
Do not paste live credentials into a website unless you have verified the tool's implementation and data-handling notice. Rotate any credential you have already exposed.
Are there related developer tools tools I should use alongside it?›
Yes — the related-tools panel on this page links the utilities most people open right before or after HTML Formatter, so you can chain them into one workflow.
Which standards does HTML Formatter follow?›
It relies on native Web APIs — TextEncoder, SubtleCrypto, JSON and the URL parser — so output matches what your runtime will produce in Node, Deno or the browser.
Is HTML Formatter free to use?›
Yes — HTML Formatter is completely free with no signup, watermark, trial or hidden paywall, however often you use it.
What happens if my input is malformed?›
You get a specific parse error with the offending position instead of a silent failure, which is usually enough to spot the missing comma or bracket.
Does HTML Formatter work on mobile phones and tablets?›
Yes. The layout is mobile-first and tested on iOS Safari, Android Chrome and every current desktop browser, with tap targets sized for thumbs.
Can I automate this html formatter in CI?›
This page is interactive, but everything it does maps to a one-line script using the same Web APIs, so porting the logic into a CI step is straightforward.
Is my data safe when I use this html formatter?›
Data handling varies by tool. Read the notice above the workspace to see whether your input stays in the browser or is sent to a named provider or service. Avoid entering sensitive information unless you understand that tool's handling.
How is HTML Formatter different from other online html formatter tools?›
It does one job without pop-ups, forced sign-in or interstitials, and remembers your settings between visits so repeat work takes seconds.