Convert ASCII to Data URI
Wrap ASCII text in a Base64 data: URI. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Convert ASCII to Data URI
- 1. Paste the content to embed. Enter the text you want packaged in the input pane. It might be a snippet of CSV, an SVG fragment or a plain sentence; whatever it is gets Base64-encoded inside the URI.
- 2. Set the MIME type. The MIME type option labels the payload for whoever consumes it. Use text/plain for ordinary text, text/csv for tabular data, or text/html when a browser should render the content as a page.
- 3. Review the assembled URI. The output follows the data:type;base64,payload pattern, like data:text/plain;base64,SGk= for Hi. Everything a consumer needs, the type and the content, travels in that single string.
- 4. Copy and use the data URI. Copy the URI into an href, a fetch call or an iframe src. Pasting it into a browser's address bar displays the content instantly, with no server involved.
When to use Convert ASCII to Data URI
Convert ASCII to Data URI packages text as a self-contained data: link, Base64 payload and MIME type included. Data URIs let content travel inside HTML, CSS or JavaScript without a hosted file behind it. Whenever you want a link that carries its own content, this builds it in one step.
- Creating downloadable content without a server. An anchor tag with a data URI href and a download attribute turns into a file download. Encode your generated text here and users can save it with zero backend involvement.
- Embedding fixtures in test suites. Browser tests that exercise file parsing can load a data URI instead of a fixture file on disk. Encoding a small CSV as data:text/csv keeps the whole test self-contained.
- Prototyping pages in the address bar. With MIME type text/html, the URI renders as a live page when pasted into a browser. It is the fastest possible way to try a scrap of HTML without touching an editor.
- Inlining content into single-file exports. A report or email template must be one self-sufficient file with no external references. Converting supporting text to data URIs removes the last dependencies on hosted assets.
Examples
Encode
Input
Hi
Output
data:text/plain;base64,SGk=
About the Convert ASCII to Data URI tool
Convert ASCII to Data URI runs as plain JavaScript in your browser tab, with no server behind it. Wrap ASCII text in a Base64 data: URI. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's ASCII Tools section, 81 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with the MIME type setting, and the result refreshes the moment you change it. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Does Convert ASCII to Data URI cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.