Every File Type. One Compressor.
27 supported file types. 964 wins across 965 files. PZIP doesn't treat your files as random bytes — it understands what they are.
All 27 file types
JPEG
ImagesAlready highly compressed — PZIP matches and guarantees it never makes files larger.
PNG
ImagesApplies structure-aware analysis to further compress already-optimized PNG data.
Structure-aware analysis that separates streams, fonts, and content for optimal compression.
HTML / CSS / JS
Text & CodeStream separation isolates tags, attributes, and content — then compresses each stream optimally.
Excel (XLSX)
OtherUp to 94% smaller — ZIP+XML container unpacking + columnar codec for sheet data
Word (DOCX)
OtherUp to 62% smaller — ZIP+XML container unpacking + XML stream separation for document data
PowerPoint (PPTX)
OtherUp to 85% smaller — exploits massive XML redundancy in slide definitions
JSON
DocumentsKey dictionary extraction stores repeated keys once, then Brotli compresses restructured data better than raw compression.
CSV
Structured DataType-aware compression that understands columnar structure, data types, and repeating patterns in tabular data.
GIF
ImagesFrame-aware handling for animated content — squeezes extra bytes from LZW container structure.
SVG
ImagesXML structure-aware compression exploits the repetitive nature of vector graphics markup.
WebP
ImagesAlready optimally compressed — PZIP guarantees zero regression.
XML
Text & CodeExploits the repetitive nature of XML tags and hierarchical structure.
Plain Text
Text & CodeAdvanced character-level prediction models outperform LZMA on natural language.
JSONL / NDJSON
Structured DataSchema-aware compression that stores keys once and columnarizes values across records.
Log Files
Text & CodePRISM template extraction separates static patterns from variable slots, then column-groups for better compression.
Source Code
Text & CodeUnderstands code syntax patterns and eliminates redundancy in naming and structure.
WAV Audio
AudioExploits audio signal properties and sample-level prediction for uncompressed audio.
SQLite
EnterprisePage-aware compression that understands database file structure and B-tree layouts.
ELF / Binary
BinarySection-aware analysis separates code, data, and metadata for targeted compression.
ELF / Binary
BinarySection-aware analysis separates code, data, and metadata for targeted compression.
BMP
OtherUncompressed bitmap — excellent compression potential
TIFF
OtherMulti-layer TIFF compression with metadata separation
ICO
OtherMulti-resolution icon compression
Fonts
OtherFont table separation + glyph compression
AVIF
OtherHEIC
OtherTry PZIP on your own files
Upload any file and see how PZIP compares to LZMA, gzip, brotli, and zstd. Free during beta. Your data is never stored.
Baseline: LZMA-9 (maximum compression)
Verification: Byte-exact round-trip on every file
Guarantee: Never-worse (PZIP <= LZMA always)
Badge rules: CRUSHING IT >= 30% saving
WINNING >= 10% saving
COMPETITIVE > 0% saving
NEVER WORSE = 0% saving (still wins on count)
Updated: 2026-02-15