> encode | decode | ascii85 <
// Base85 kodning til effektiv datakomprimering
High Efficiency
More efficient than Base64, producing ~25% smaller output for the same data.
Local Processing
All conversions happen in your browser. Your data never leaves your device.
Adobe Standard
Uses the standard ASCII85 format with <~ ~> delimiters, compatible with PostScript.
// OM BASE85 KODNING
Sådan fungerer Base85:
Base85 (ASCII85) bruger 85 udskrivbare tegn til at repræsentere data. Det giver bedre komprimeringseffektivitet end Base64, hvilket gør det ideelt til store data.
Eksempel:
"Hej" → <~8jqSO~>
Hvorfor bruge Base85:
- >Høj komprimeringseffektivitet
- >Mindre end Base64
- >Bruges i PostScript/PDF
- >Ideelt til store data
- >Fremragende komprimeringsforhold
>> ofte stillede spørgsmål
What is Base85 encoding?
Base85, also known as ASCII85, is a binary-to-text encoding scheme that uses 85 printable ASCII characters to represent binary data more efficiently than Base64.
Why is Base85 more efficient than Base64?
Base85 encodes 4 bytes as 5 characters (80% efficiency) while Base64 encodes 3 bytes as 4 characters (75% efficiency), making Base85 about 25% more space-efficient.
What are the <~ ~> delimiters?
The <~ and ~> delimiters are part of the Adobe ASCII85 standard, marking the beginning and end of encoded data. They help identify Base85 content in documents.
What does the 'z' character mean?
The 'z' character is a special shortcut in ASCII85 that represents four consecutive zero bytes (\x00\x00\x00\x00), making the encoding more efficient.