Convert ASCII to ATASCII
Map ASCII characters to Atari ATASCII codes. 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 ATASCII
- 1. Paste the text to convert. Enter your ASCII text in the input pane. Letters, digits and common punctuation map cleanly onto the Atari character set; the tool handles the code translation for you.
- 2. Choose a separator. Use the Separator option to control how the ATASCII codes are joined. Spaces keep the list readable, while commas produce output you can paste directly into a BASIC DATA statement.
- 3. Read the ATASCII codes. Each character becomes its Atari code, so A comes out as 65 while control and graphics characters diverge from ASCII in the ranges where the two sets disagree. Line endings become code 155, the Atari EOL.
- 4. Copy the codes for your Atari project. Copy the number sequence and feed it to an emulator, a BASIC listing or a disk-image tool. The values are ready for POKE statements or file generation.
When to use Convert ASCII to ATASCII
Convert ASCII to ATASCII translates modern text into the character codes used by Atari 8-bit computers. ATASCII overlaps ASCII for letters and digits but differs for control codes, line endings and graphics characters, so a proper mapping saves you from subtle corruption when moving text onto vintage hardware or emulators.
- Writing text into Atari BASIC programs. BASIC DATA statements and POKE loops need numeric character codes. Convert your strings here with comma separators and paste the values straight into the listing you are typing into an emulator.
- Preparing files for Atari disk images. Text destined for an ATR disk image needs ATASCII line endings, code 155 rather than 13. Converting first means your notes open correctly in vintage word processors instead of showing junk.
- Building retro-game string tables. A homebrew Atari game stores dialog as raw code bytes. Generating the sequences from readable ASCII keeps your source text editable while the build gets the numbers it needs.
- Documenting ASCII versus ATASCII differences. When writing about 8-bit platforms, concrete code comparisons beat prose. Convert sample strings and quote the exact values where the Atari set departs from standard ASCII.
Examples
Letter
Input
A
Output
65
Word
Input
Hi
Output
72 105
About the Convert ASCII to ATASCII tool
Convert ASCII to ATASCII runs as plain JavaScript in your browser tab, with no server behind it. Map ASCII characters to Atari ATASCII codes. 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 Separator setting, and the result refreshes the moment you change it. 2 worked examples further down the page show exactly what the tool produces for real inputs.
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
Is Convert ASCII to ATASCII free to use?
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?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
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?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
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.