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Key Features
Instant Calculation
Get accurate results in real time with our optimized algorithm.
Mobile Friendly
Fully responsive design. Works on all devices & screen sizes.
Privacy Focused
Your data stays on your device. We don't store any inputs.
100% Free
No hidden costs. This tool is completely free forever.
ASCII art turns short text into large block letters built entirely from plain, printable ASCII characters — no images, no color codes, and no special Unicode required. Long before graphical banners were common, developers used this exact technique to make a header stand out in a plain-text file, and it's stuck around because it's the one styling trick guaranteed to survive being pasted into absolutely any plain-text context. Unlike ANSI art (which relies on terminal color escape codes) or Unicode-based "fancy text" (which relies on special code points some fonts don't render), a pure ASCII banner made of ordinary characters like # or * displays identically in a code comment, a README file, a plain-text email, a terminal with zero color support, or a legacy system that only understands the original 128-character ASCII set. This tool renders short text as large block letters built from a plain-ASCII bitmap font, so the output is guaranteed to display correctly anywhere plain text is accepted.
How it works
Type up to 14 characters and choose a fill character (default "#"). Each character you type is looked up in a 5-row block-letter bitmap font, where every letter is defined as a small grid of "on" and "off" cells. The tool renders each "on" cell using your chosen fill character and each "off" cell as a space, then stacks the rows together so the letters line up into one wide banner.
- Enter text (max 14 characters, A-Z 0-9).
- Enter fill character.
- Click Calculate to see your results.
Examples
A README banner
Typing "DEMO" with fill character "*" produces a plain-text block banner you can paste directly into a README.md code block for an eye-catching header.
A terminal welcome message
Typing "HI" with fill character "#" produces a short two-letter block banner suitable for a CLI tool's startup message, since it renders identically regardless of terminal color support.
Who should use it
- README and documentation banners.
- Code comment headers.
- CLI tool startup/splash messages.
Industry applications
- Software documentation
- Open-source project branding
- Command-line tool development
Advantages
- Displays correctly everywhere — no color codes or special fonts required.
- Customizable fill character.
- Works in legacy or minimal plain-text environments.
Limitations
- Limited to a small uppercase/digit bitmap font.
- Requires a monospace font to display correctly.
Common mistakes to avoid
- Using too many characters for the target line width — 14 characters already produces a wide banner in most fonts.
- Pasting the result into a non-monospace font context, which breaks the careful character alignment the banner depends on.
- Expecting full lowercase, punctuation, or accented-character support from a simple block-letter bitmap font designed mainly for uppercase and digits.
Best practices
- Wrap the output in a code block (triple backticks) when pasting into Markdown so the spacing/alignment is preserved.
- Keep the banner text short — a full word rather than a full sentence — since each character already takes up several columns.
- Preview the result in the exact destination (terminal, README, etc.) before finalizing, since monospace rendering varies slightly between platforms.
Tips
- Need color instead? Use the ANSI Art Creator for a terminal-colored version of the same idea.
- Test your banner in the actual destination app before publishing, since monospace rendering can vary slightly.