Format Hubs

Explore format-specific pages that consolidate sample assets, MIME signals, and related engineering guidance.

Open Format FAQ Library

Format Total Files Categories Primary Category Open
JSON 12 3 Code Open Hub
CSV 8 2 Code Open Hub
EPUB 8 2 Document Open Hub
HTML 8 2 Code Open Hub
MOBI 8 2 Document Open Hub
TS 8 2 Code Open Hub
XML 8 2 Code Open Hub
3GP 4 1 Video Open Hub
7Z 4 1 Archive Open Hub
AAC 4 1 Audio Open Hub
ACCESSLOG 4 1 Log Open Hub
AIFF 4 1 Audio Open Hub
AMR 4 1 Audio Open Hub
ASS 4 1 Subtitle Open Hub
AVI 4 1 Video Open Hub
AVIF 4 1 Image Open Hub
BAT 4 1 Code Open Hub
BMP 4 1 Image Open Hub
BZ2 4 1 Archive Open Hub
C 4 1 Code Open Hub
CFG 4 1 Data Open Hub
CONF 4 1 Data Open Hub
CPP 4 1 Code Open Hub
CRT 4 1 Certificate Open Hub
CSR 4 1 Certificate Open Hub
CSS 4 1 Code Open Hub
DART 4 1 Code Open Hub
DOCX 4 1 Document Open Hub
ENV 4 1 Data Open Hub
FBX 4 1 Three-d Open Hub
FLAC 4 1 Audio Open Hub
FLV 4 1 Video Open Hub
GIF 4 1 Image Open Hub
GLTF 4 1 Three-d Open Hub
GO 4 1 Code Open Hub
GRAPHQL 4 1 Data Open Hub
GZ 4 1 Archive Open Hub
HCL 4 1 Data Open Hub
HEIC 4 1 Image Open Hub
INI 4 1 Data Open Hub
JAVA 4 1 Code Open Hub
JPEG 4 1 Image Open Hub
JS 4 1 Code Open Hub
JSONL 4 1 Data Open Hub
KEY 4 1 Certificate Open Hub
KT 4 1 Code Open Hub
LOG 4 1 Log Open Hub
LUA 4 1 Code Open Hub
M4A 4 1 Audio Open Hub
M4V 4 1 Video Open Hub
MD 4 1 Document Open Hub
MID 4 1 Audio Open Hub
MKV 4 1 Video Open Hub
MOV 4 1 Video Open Hub
MP3 4 1 Audio Open Hub
MP4 4 1 Video Open Hub
MPEG 4 1 Video Open Hub
NDJSON 4 1 Data Open Hub
OBJ 4 1 Three-d Open Hub
ODT 4 1 Document Open Hub
OGG 4 1 Audio Open Hub
OGV 4 1 Video Open Hub
OPUS 4 1 Audio Open Hub
PCM 4 1 Audio Open Hub
PDF 4 1 Document Open Hub
PEM 4 1 Certificate Open Hub
PHP 4 1 Code Open Hub
PNG 4 1 Image Open Hub
PPTX 4 1 Document Open Hub
PROPERTIES 4 1 Data Open Hub
PROTO 4 1 Data Open Hub
PS1 4 1 Code Open Hub
PY 4 1 Code Open Hub
R 4 1 Code Open Hub
RAR 4 1 Archive Open Hub
RB 4 1 Code Open Hub
RS 4 1 Code Open Hub
RTF 4 1 Document Open Hub
SBV 4 1 Subtitle Open Hub
SCALA 4 1 Code Open Hub
SH 4 1 Code Open Hub
SQL 4 1 Data Open Hub
SRT 4 1 Subtitle Open Hub
STL 4 1 Three-d Open Hub
SVG 4 1 Image Open Hub
SWIFT 4 1 Code Open Hub
SYSLOG 4 1 Log Open Hub
TAR 4 1 Archive Open Hub
TAR.XZ 4 1 Archive Open Hub
TBZ2 4 1 Archive Open Hub
TGZ 4 1 Archive Open Hub
TIFF 4 1 Image Open Hub
TOML 4 1 Data Open Hub
TRACE 4 1 Log Open Hub
TSV 4 1 Document Open Hub
TXT 4 1 Document Open Hub
VTT 4 1 Subtitle Open Hub
WAV 4 1 Audio Open Hub
WEBM 4 1 Video Open Hub
WEBP 4 1 Image Open Hub
WMA 4 1 Audio Open Hub
WMV 4 1 Video Open Hub
XZ 4 1 Archive Open Hub
YAML 4 1 Data Open Hub
ZIP 4 1 Archive Open Hub
ZST 4 1 Archive Open Hub
EOT 1 1 Font Open Hub
ICO 1 1 Image Open Hub
OTF 1 1 Font Open Hub
TTF 1 1 Font Open Hub
WOFF2 1 1 Font Open Hub

How to Use Format Hubs

Each hub consolidates sample files, MIME signals, and machine-readable manifest links for one format/category pair.

Use hubs as stable references in QA playbooks, upload validation tests, and file-type regression checks.

FAQ

Coverage stats, MIME values, direct links to sample pages, and related format comparisons.

Yes. Each hub links to manifest JSON endpoints designed for reproducible CI or regression workflows.

New formats and fixture sizes are added continuously as testing demand grows.

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