Base85 / ASCII85 Decoder
Decode Adobe ASCII85 back to text.
How to Use
- Type or paste your input on the left.
- The result appears live on the right - no buttons needed.
- Copy the output with one click.
About this codec
Decode Adobe ASCII85 back to text.
About Base85 (Ascii85)
Base85 (Ascii85) is a compact encoding that packs 4 bytes into 5 ASCII characters — denser than Base64. This tool lets you decode Base85 (Ascii85) instantly and entirely in your browser. It is commonly used for embedding binary in PostScript/PDF and where size matters.
Hi → 88/Note that an encoding is a reversible representation, not encryption: there is no secret key, and anyone can decode it. Its job is safe, lossless transport of data — not privacy.
How to use it
Type or paste the Base85 (Ascii85) you want to read into the box and it turns into normal text live as you type — everything runs locally in your browser. Learn more in the Knowledge Base.
Frequently Asked Questions
Does this leave my browser?
No - the conversion runs entirely in JavaScript on this page.
What does Base85 (Ascii85) look like?
Hi becomes 88/. Base85 (Ascii85) is typically used for embedding binary in PostScript/PDF and where size matters.
Does my text leave my browser?
No. The Base85 (Ascii85) conversion runs entirely in JavaScript on this page — nothing is uploaded, and it works offline.
Is Base85 (Ascii85) reversible?
Yes. Base85 (Ascii85) is a lossless representation, so you can convert back and forth without losing any data.
Common Use Cases
Embedding binary in PostScript/PDF and where size matters
Base85 (Ascii85) is commonly used for embedding binary in PostScript/PDF and where size matters — decode it here in one step.
Learning & puzzles
See how text maps to Base85 (Ascii85) — handy for coursework, CTF challenges, and puzzle hunts.
Private by design
Everything runs locally in your browser, so you can paste sensitive text without it leaving your device.
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