What is BBCode and why convert it to HTML?

BBCode (Bulletin Board Code) is the lightweight markup phpBB, vBulletin and many forums use instead of raw HTML, written with square brackets like [b]bold[/b] or [url=https://x.com]link[/url]. Browsers do not understand it, so to show a forum post anywhere else, in a blog, a CMS or a static site, you have to turn it into real HTML. This tool does exactly that: paste [b]Hello[/b] and you get Hello ready to render.

How do I convert [b], [i] and the other style tags?

Just paste them. [b]text[/b] becomes text , [i] becomes , [u] becomes , [s] becomes . [color=red]hi[/color] becomes hi and [size=18]big[/size] sets an inline font-size. The converter walks every tag, so a line like [b][color=blue]Sale[/color][/b] turns into nested HTML that renders bold and blue together. Tags must be closed; a lone [b] with no [/b] is left as plain text so nothing breaks.

How are [url] and [img] links handled?

[url=https://toolora.app]Toolora[/url] becomes Toolora , and a bare [url]https://toolora.app[/url] uses the address as both the href and the link text. [img]https://x.com/pic.png[/img] becomes an tag with that source. The URL is escaped like everything else, so a quote or angle bracket inside it cannot break out of the attribute and inject extra markup.

Will BBCode tags inside [code] get parsed?

No. Anything between [code] and [/code] is treated as literal text: it is HTML-escaped and wrapped in , but the BBCode inside is NOT converted. So [code][b]not bold[/b][/code] shows the literal characters [b]not bold[/b] in a code block, which is exactly what you want when posting a BBCode example or a snippet of source. This is handled before the other tags run, so nesting cannot leak.

Is the output safe, can it cause XSS?

The tool escapes the raw text to entities (& " ') before any BBCode tag is processed, so a pasted tag or onclick attribute becomes harmless visible text, never executable markup. Only the specific BBCode tags you wrote are turned back into a fixed, known set of HTML elements. URLs inside [url] and [img] are escaped too. The whole thing runs in your browser with no DOM execution of the input, so the HTML it produces is safe to copy into a page.

What happens to unknown or unsupported tags?

You choose. By default unknown tags like [marquee] or [spoiler] are kept verbatim as escaped text so you can see and fix them. Flip the strip option and any tag the converter does not recognise is removed while its inner text stays. Either way the unknown tag can never become live HTML, because the escape pass already neutralised the brackets before tag matching begins.

Migrate old forum posts to a blog or CMS

You are moving years of phpBB threads into a static site or a headless CMS that wants HTML, not BBCode. Paste each post, get clean HTML with the quotes, code blocks and links intact, and copy it into your new editor. The escape-first pass means even posts full of pasted tracebacks and angle brackets convert without breaking the page or smuggling in markup.

Render a forum signature outside the forum

Your forum signature is BBCode with a bold name, a colored tagline and an [img] badge. To reuse it in an email footer or a personal site you need HTML. Paste the signature, see it render live, and copy the source. The inline color and size styles carry over so it looks the same outside the board it was written for.

Post a BBCode example without it being parsed

Writing a tutorial on how BBCode works means showing the raw tags. Wrap your example in [code] and the converter keeps [b]like this[/b] literal inside a code block instead of turning it bold. You get a tidy snippet that displays the BBCode exactly as typed, which is impossible to do by hand without fiddly manual escaping.

Sanity-check untrusted BBCode before publishing

You accept BBCode from users and want to see what HTML it actually produces before it goes live. Paste a suspicious post and watch a pasted or onclick collapse into harmless visible text in both the preview and the source. It is a fast way to confirm the escaping holds before you wire the same logic into your backend.

BBCode to HTML Converter — Live Forum BBCode Preview

Paste forum BBCode, get safe HTML — live preview, escaped output, one-click copy, all in your browser

Runs locally
Category Format Converter
Best for Turning pasted content or local files into a handoff-friendly format.

Paste forum BBCode on the left, get safe HTML on the right. Raw text is escaped first, so pasted scripts can never run. [code] blocks are kept literal and not parsed.

BBCode

Strip unknown tags

Paste BBCode on the left and the HTML appears here.

What this tool does

Free BBCode to HTML converter for forum posts, signatures and migrating old phpBB or vBulletin content to the modern web. Paste any BBCode and the tool escapes the raw text first, then turns the tags into real HTML: [b][i][u][s] become strong/em/u/s, [url=...] and [img] become links and images, [quote] and [quote=name] become blockquotes, [list] with [*] becomes a bullet list, [color] and [size] become inline styles, and [center], [email] and [code] all map to their HTML equivalents. Because the text is escaped before any tag runs, a stray angle bracket or pasted script can only ever show up as visible characters, so the output is safe to drop into a page. Anything inside [code] is left literal and never parsed as BBCode. You get a live rendered preview, the raw HTML source, and a copy button. Unknown tags can be kept verbatim or stripped, your choice. Everything runs client-side, nothing is uploaded.

Tool details

Input: Text + Numbers + Structured content; The page exposes text boxes, numeric controls, file pickers, or structured inputs depending on the tool.
Output: Live result + Copy + Preview; The result area focuses on usable output, with copy, download, or preview actions when supported.
Privacy: Browser-side processing; The main tool logic does not call an external API, so inputs normally stay in the current tab.
Save / share: Shareable URL state; Key settings are encoded in the URL so another person can reopen the same setup.
Performance budget: Initial JS <= 9 KB; No WASM budget is declared, keeping the tool quick to open on mobile.
Best fit: Format Converter · Developer; Category and role tags drive related tools, internal links, and quick fit checks.

How to use

1. Input

Paste or drop your content into the tool panel.
2. Process

Click the button. All processing is local in your browser.
3. Copy / Download

Copy the result or download to disk in one click.

How BBCode to HTML Converter fits into your work

Use it when the main problem is getting content from one practical format into another.

Conversion jobs

Turning pasted content or local files into a handoff-friendly format.
Previewing a conversion before you use it in a larger workflow.
Cleaning small format mismatches without opening a full editor.

Conversion checks

Try a small sample first when the source format is messy.
Check character encoding, separators, and line endings after conversion.
Keep the source until the converted output has been reviewed.

Good next steps

These links move the current task into a more complete workflow.

Real-world use cases

Migrate old forum posts to a blog or CMS
You are moving years of phpBB threads into a static site or a headless CMS that wants HTML, not BBCode. Paste each post, get clean HTML with the quotes, code blocks and links intact, and copy it into your new editor. The escape-first pass means even posts full of pasted tracebacks and angle brackets convert without breaking the page or smuggling in markup.
Render a forum signature outside the forum
Your forum signature is BBCode with a bold name, a colored tagline and an [img] badge. To reuse it in an email footer or a personal site you need HTML. Paste the signature, see it render live, and copy the source. The inline color and size styles carry over so it looks the same outside the board it was written for.
Post a BBCode example without it being parsed
Writing a tutorial on how BBCode works means showing the raw tags. Wrap your example in [code] and the converter keeps [b]like this[/b] literal inside a code block instead of turning it bold. You get a tidy <pre><code> snippet that displays the BBCode exactly as typed, which is impossible to do by hand without fiddly manual escaping.
Sanity-check untrusted BBCode before publishing
You accept BBCode from users and want to see what HTML it actually produces before it goes live. Paste a suspicious post and watch a pasted <script> or onclick collapse into harmless visible text in both the preview and the source. It is a fast way to confirm the escaping holds before you wire the same logic into your backend.

Common pitfalls

Expecting BBCode inside [code] to convert. It will not, by design. Tags between [code] and [/code] stay literal so you can show examples; if you actually want them rendered, move them outside the code block.
Leaving a tag unclosed. A [b] with no matching [/b], or a [quote] that never ends, is treated as plain text rather than guessed at. Close every tag, or the converter leaves the bracket visible instead of inventing structure.
Assuming the HTML is unsafe because the input had a script tag. The opposite holds. Input is escaped before any conversion, so pasted scripts become visible text and the produced HTML carries only the fixed elements your BBCode tags map to.

Privacy

Every step, the HTML escape, the tag conversion, the live preview, runs as plain JavaScript inside your browser tab. The BBCode you paste and the HTML it produces never leave the page, and nothing is logged or uploaded. One thing to know: your input is synced into the page URL so a share link reopens the same text, which means pasting that link into chat records the content in the recipient server access log. For a private or unpublished post, use the copy button and paste the HTML instead of sharing the URL.

FAQ

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BBCode to HTML Converter — Live Forum BBCode Preview

What this tool does

Tool details

How to use

1. Input

2. Process

3. Copy / Download

How BBCode to HTML Converter fits into your work

Conversion jobs

Conversion checks

Good next steps

Real-world use cases

Migrate old forum posts to a blog or CMS

Render a forum signature outside the forum

Post a BBCode example without it being parsed

Sanity-check untrusted BBCode before publishing

Common pitfalls

Privacy

FAQ

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