Base85 encoder.
Type text or drop a file and read its ASCII85 as you type: five characters for every four bytes, the form PDF and PostScript use. Everything runs in your browser.85 characters+25% size5:4 characters to bytes0 bytes uploaded
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Set up MCPBase85 encoder.
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3 steps, no account. It runs in your browser and nothing is uploaded.
Enter text or a file
Type or paste anything, or drop a file onto the input; the Base85 updates with every keystroke.
Choose the form
With or without <~ ~>: pick in the bar and the result is rewritten in place.
Copy, download or swap
Copy the Base85, download it as a text file, or press Swap to decode it back.
Where Base85 is used
The densest of the common encodings, a quarter larger than the bytes. Where Base85 does its work.
PDF streams
An image or font stream with the ASCII85Decode filter is Base85 text between `stream` and `endstream`, ending in ~>.
PostScript
PostScript Level 2 added ASCII85 so binary data could travel in a printable file; <~ … ~> is its syntax.
Git binary patches
`git diff --binary` writes changed binaries as Base85 with Git's own alphabet, one length letter per line.
Z85 keys
ZeroMQ's CurveZMQ keys are Z85, 40 characters for 32 bytes, with an alphabet safe in a string literal.
Python
Python's `base64.a85encode` and `b85encode` give the Adobe and the Git flavour respectively.
Dense storage
A blob that must be text but as short as possible, inside a file no URL will ever touch.
Related tools
Nearby in the encoders and decoders. Every one free, in the browser.
- Base85 decoderPaste ASCII85 and read the text it holds as you type.
- File to Base85Drop any file and get its ASCII85, a quarter larger than the bytes.
- Base85 to filePaste ASCII85 and get the file back.
- Base64 encoderType text or drop a file and read its Base64 as you type.
- Hex encoderType text or drop a file and read its hex as you type: two digits per byte, upper or lower case, spaced or joined.
- Base32 encoderType text or drop a file and read its Base32 as you type.
Pricing
Build it with Pro
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Billing
Billed once a year in USD. Cancel anytime.
- How many people can use the license.
- Client work, SaaS products and anything you charge for.
- Production-ready React sections: hero, pricing, features, dashboards and more.
- Complete multi-page sites you can ship as they are.
- React icons from every major library, installable with one command.
- Presets that restyle every block, in light and dark.
- Lets your AI editor search, preview and install blocks for you.
- Priority requests are answered first.
Individual
For personal projects & open source
$32instead of $49/mo
$389 billed yearly
- Seats: 1 seat
- Commercial use: Personal & open source only
- Pro blocks: 6,000+ blocks
- Templates: All 14 templates
- React icons: 294k+ icons
- Themes: All 59 themes
- MCP server: Basic usage
- Support: Standard
Team
Most popularFor freelancers, agencies & startups
$66instead of $99/mo
$789 billed yearly · ≈ $13/dev/mo
- Seats: Up to 5 seats
- Commercial use: Included
- Pro blocks: 6,000+ blocks
- Templates: All 14 templates
- React icons: 294k+ icons
- Themes: All 59 themes
- MCP server: High usage
- Support: Priority
Organization
For companies with larger teams
$132instead of $199/mo
$1,589 billed yearly
- Seats: Unlimited seats
- Commercial use: Included
- Pro blocks: 6,000+ blocks
- Templates: All 14 templates
- React icons: 294k+ icons
- Themes: All 59 themes
- MCP server: Unlimited usage
- Support: Priority
Billed once a year in USD. Cancel anytime.
Individual
For personal projects & open source
$32instead of $49/mo
$389 billed yearly
- How many people can use the license.Seats: 1 seat
- Client work, SaaS products and anything you charge for.Commercial use: Personal & open source only
- Production-ready React sections: hero, pricing, features, dashboards and more.Pro blocks: 6,000+ blocks
- Complete multi-page sites you can ship as they are.Templates: All 14 templates
- React icons from every major library, installable with one command.React icons: 294k+ icons
- Presets that restyle every block, in light and dark.Themes: All 59 themes
- Lets your AI editor search, preview and install blocks for you.MCP server: Basic usage
- Priority requests are answered first.Support: Standard
Team
Most popularFor freelancers, agencies & startups
$66instead of $99/mo
$789 billed yearly · ≈ $13/dev/mo
Everything in Individual, plus
- How many people can use the license.Seats: Up to 5 seats
- Client work, SaaS products and anything you charge for.Commercial use: Included
- Lets your AI editor search, preview and install blocks for you.MCP server: High usage
- Priority requests are answered first.Support: Priority
Organization
For companies with larger teams
$132instead of $199/mo
$1,589 billed yearly
Everything in Team, plus
- How many people can use the license.Seats: Unlimited seats
- Lets your AI editor search, preview and install blocks for you.MCP server: Unlimited usage
- Secure checkout via Stripe
- Code lives in your repo
- Keep what you've shipped if you cancel
- License terms
Questions and answers
Before you trust the result: what to know about the format, the limits and your data.
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