Free online tools that run in your browser
Your files never leave your device · No login required · 100% free
Convert, compress, calculate, generate, edit and check files right in your browser — fast, private and easy to use.
Search results
Popular tools
View all toolsBrowse by category
Popular file conversions
View all convertersProgramming
Learn and practise programming in your browser. Pick a language: write code, run it in a real terminal and follow the lessons step by step.
Why Shiklo Tools?
Simple, private tools that just work — right in your browser.
- Private Everything runs in your browser. Files are never uploaded.
- Secure Encrypted HTTPS connection, and nothing you open is stored on our servers.
- No login required No account, no sign-up, no email. Just open a tool and use it.
- Fast No upload or download wait — results appear instantly.
- Free All tools are free to use, with no limits.
- Works everywhere Phone, tablet or computer, in any modern browser.
🆕 New tools
★ Popular tools
Recently used
Frequently asked questions
Are my files or text uploaded anywhere?
No. Every tool runs inside your browser on your own device. Nothing you enter or open is sent to a server.
Do I need to create an account or log in?
No login is required. There are no accounts — open any tool and start using it straight away.
Are the tools really free?
Yes. All tools are free, with no limits or watermarks. The site is supported by ads.
Does it work on my phone?
Yes. The tools work in any modern browser on phones, tablets and computers.
Can I use the tools offline?
Once a tool has loaded it does its work on your device, so it keeps working even if your connection drops.
Which file types are supported?
PDF, Word, Excel, PowerPoint, OpenDocument and RTF documents, JPG, PNG, WebP, HEIC, AVIF, GIF and BMP images, MP4, MOV, WebM and MKV videos, MP3, WAV, M4A, OGG and FLAC audio, ZIP, 7z, RAR, TAR and GZIP archives, CSV, JSON, XML and plain text. Each tool lists exactly what it opens.
All tools with descriptions →
HTML Formatter
Beautify HTML, including inline CSS and JavaScript, with Prettier, or minify it safely. Indent, line width and whitespace options. Private.
Clean up HTML copied from a web page, an email template, a CMS or a code generator. The HTML Formatter re-indents every element, puts attributes on separate lines when a tag gets too long, and also formats the CSS inside style blocks and the JavaScript inside script blocks. It uses Prettier, the same formatter many developers run in their editors.
Need the opposite? Minify removes comments and the whitespace between tags while leaving pre, textarea, script and style content untouched, so the page still looks and works the same. Everything happens in your browser, and your HTML is never uploaded.
How to use HTML Formatter
- Paste your HTML, open an .html file, or click Sample.
- Choose the indent (2, 4 or Tab) and the line width (80, 100 or 120).
- Pick how whitespace is treated: respect CSS display, ignore, or strict.
- Copy or download the result, or click Minify for compact HTML.
Features
- Beautify full pages or fragments with Prettier.
- Inline CSS in style blocks and JavaScript in script blocks formatted too.
- Indent with 2 spaces, 4 spaces or tabs; line width 80, 100 or 120.
- Three whitespace modes so inline text is never broken by accident.
- Safe minifier: comments and whitespace between tags removed.
- Content of pre, textarea, script and style kept exactly when minifying.
- Option to keep comments when minifying.
- Works with Vue and Svelte templates saved as HTML.
- Private: nothing leaves your browser.
What the formatter changes
The formatter parses the HTML into elements and prints it again with one block element per line, each child indented one level deeper than its parent. When a start tag with many attributes is longer than the line width, each attribute goes on its own line. The CSS inside style elements and the scripts inside script elements are formatted with Prettier's CSS and JavaScript printers. Text content, attribute values and the order of elements are not changed.
Whitespace sensitivity
In HTML, a space between two inline elements such as links or bold text is visible on the page. Adding a line break in the wrong place can add or remove that space. The Whitespace option controls how careful the formatter is.
| Mode | Behaviour | Best for |
|---|---|---|
| Respect CSS display (default) | Inline elements are treated as inline, block elements as blocks | Most pages; output looks the same in the browser |
| Ignore (more compact) | Whitespace is treated as unimportant everywhere | Templates where you control all spacing with CSS |
| Strict | Every element is treated as inline | Pages where exact spacing must never change |
Minifying HTML safely
Minify removes HTML comments and the whitespace between tags, and collapses runs of spaces into one. That makes pages and email templates smaller. To avoid breaking anything, the content of pre and textarea (where spaces matter) and of script and style elements is kept exactly as written, and Internet Explorer conditional comments are kept. Tick “Keep comments when minifying” if your comments carry information, such as licence notes or template markers.
When to use an HTML beautifier
Formatting helps when you inspect markup copied from a browser's developer tools, review HTML produced by a page builder or a rich-text editor, fix the structure of an email template, compare two versions of a page with the Text Diff Checker, or simply want to see where an unclosed element starts. Clean indentation makes the nesting of elements obvious at a glance.
Errors and limitations
Browsers are forgiving and display almost any markup, but a formatter must understand the structure. If an element is closed in the wrong order or a tag is broken, the formatter reports the line and column so you can fix it. Templates that mix HTML with server-side code such as PHP or Jinja may not format, because those tags are not HTML.
Frequently asked questions
Is the HTML formatter free and private?
Yes. It is free, needs no sign-up, and the HTML is formatted in your browser. It is never uploaded.
Will formatting change how my page looks?
With the default whitespace mode, no. Spaces between inline elements are kept where the browser would show them. Use Strict if exact spacing must never change.
Does it format the CSS and JavaScript in my page?
Yes. Code inside style and script elements is formatted with Prettier's CSS and JavaScript printers.
Is the minifier safe?
It only removes comments and whitespace between tags. The content of pre, textarea, script and style elements is never changed, so the page behaves the same.
Why do I get an error?
The markup could not be parsed, for example because of a broken tag or an element closed out of order. The message gives the line and column.
Can I format email templates?
Yes. Email HTML with tables and inline styles formats well. Use the minifier carefully: some email clients are sensitive to whitespace in text.
Can it format PHP or other template files?
Only if they are valid HTML. Server-side tags like PHP or Jinja blocks are not HTML and can cause errors.
Related tools
JavaScript FormatterBeautify JavaScript, TypeScript, JSX and JSON with Prettier: indent, quotes, semicolons and line width. Syntax errors with line and column. Private.
XML FormatterBeautify, minify and validate XML with the exact line and column of any error, and convert XML to JSON. Private, runs in your browser.
JSON FormatterFormat, beautify and minify JSON with 2/4-space or tab indentation, sorted keys and a collapsible tree view. Big numbers stay exact. Private.
HTML to PDFConvert HTML code or an .html file to PDF: live preview, page size, orientation and margins. Scripts never run. In your browser.
Text Diff CheckerCompare two texts and see every difference by line, word or character — side by side or inline. Ignore case, spaces or blank lines.
Whitespace RemoverRemove extra spaces, tabs, line breaks, empty lines and invisible characters from text in one go — and see exactly what was removed.