How Deflate works
Deflate pairs LZ77 duplicate-string elimination with Huffman entropy coding. It is fast, patent-free and ubiquitous.
- Family
- lossless
- Introduced
- 1993
- Typical ratio
- 2:1 to 5:1 on text
Deflate scores
Deterministic scores calculated from the structured facts above. Identical facts always produce identical scores.
Overall score
83/100
Archiving score
100- it is a current, actively maintained format
- it is actively maintained and current
Confidence 34% · evidence coverage 56%
Longevity score
89- it is actively maintained and current
- it is a current, actively maintained format
- it occupies a niche corner of the ecosystem
Confidence 36% · evidence coverage 75%
Related to Deflate
Data quality
Every claim on this page is classified as a verified fact, a derived fact or an assumption.
- Overall confidence
- 85%
- Verification status
- verified
- Last reviewed
- 2026-08-03
- Verified facts
- 3
3 classified claims backed by 2 sources.
- Convert Always editorial review — Convert Always
- RFC 1951 — DEFLATE Compressed Data Format Specification — IETF
Sources and review status
Review status: verified · confidence 90%
Last reviewed 2026-08-03 (revision 1).
- Convert Always editorial review — Convert Always