Database
Browse 5,303 skills across 372 packs and 37 categories
3MF 3D Manufacturing Format
253LThe 3MF file format — the modern replacement for STL in 3D printing, supporting colors, materials, multi-object assemblies, and precise manufacturing data in a single package.
7-Zip Compressed Archive
166LThe 7z archive format — open-source high-ratio compression using LZMA2, with strong AES-256 encryption, solid archives, and multi-threading support.
AAC (Advanced Audio Coding)
150LA lossy audio codec standardized as part of MPEG-2 and MPEG-4, designed to supersede MP3 with better quality at equivalent or lower bitrates.
AC3 (Dolby Digital)
170LDolby's surround sound audio codec used in cinema, DVD, Blu-ray, and broadcast television for multichannel 5.1 audio delivery.
AI Adobe Illustrator Format
194LAI is Adobe Illustrator's native vector graphics file format, used for
AIFF (Audio Interchange File Format)
158LApple's uncompressed audio format storing raw PCM data, serving as the Mac equivalent of WAV for professional audio production.
ALAC (Apple Lossless Audio Codec)
177LApple's lossless audio compression codec, storing bit-perfect audio at roughly half the size of uncompressed PCM, natively integrated across all Apple devices.
AMR (Adaptive Multi-Rate)
191LA speech-optimized audio codec designed for mobile telephony, encoding voice efficiently at very low bitrates for GSM and 3G cellular networks.
APE (Monkey's Audio)
173LA lossless audio compression format achieving among the highest compression ratios of any lossless codec, at the cost of CPU intensity and limited compatibility.
APK Android Package
235LThe APK file format — Android's application package containing compiled code, resources, assets, and manifest for distribution and installation on Android devices.
APNG (Animated PNG)
205LAPNG is an extension of the PNG format that supports frame-based animation with full 24-bit color and alpha transparency, offering a higher-quality alternative to animated GIF.
AppImage Portable Linux Apps
345LThe AppImage format — self-contained, distribution-agnostic Linux applications that run without installation, packaging all dependencies in a single executable file.
AVI (Audio Video Interleave)
154LAVI is Microsoft's legacy multimedia container format, introduced in 1992, storing interleaved audio and video data using the RIFF structure.
AVIF Image Format
206LAVIF is a next-generation image format based on the AV1 video codec, offering
Apache Avro
263LApache Avro data serialization system — a compact binary format with embedded schema, designed for data exchange, messaging, and long-term storage with schema evolution.
BLEND Blender Native Format
223LThe BLEND file format — Blender's native project format storing complete 3D scenes with meshes, materials, animations, simulations, compositing, and full edit history.
BMP Image Format
143LBMP is a simple raster image format that stores pixel data with minimal or no
Bzip2 Compression
171LThe Bzip2 compression format — block-sorting compressor using the Burrows-Wheeler transform for higher compression ratios than gzip at the cost of speed.
CSV (Comma-Separated Values)
163LA plain-text tabular data format where each line represents a row and fields are separated by commas, serving as the universal interchange format for structured data.
DDS Image Format
204LDDS (DirectDraw Surface) is a texture container format designed for GPU-ready
DEB Debian Package
322LThe DEB package format — Debian and Ubuntu's software package format for installing, updating, and managing applications and libraries on Linux systems.
DMG Apple Disk Image
202LThe DMG disk image format — Apple's native mountable container for macOS software distribution, with compression, encryption, and code signing support.
DNxHR (Avid DNxHR/DNxHD)
181LDNxHR is Avid's resolution-independent professional intermediate video codec, designed for multi-platform post-production editing and broadcast workflows.
DOC (Microsoft Word Binary Format)
161LThe legacy binary file format used by Microsoft Word from 1997 through 2003, storing rich text documents in OLE2 compound file containers.
DOCX (Microsoft Word Open XML)
141LThe modern Microsoft Word document format based on Open XML, storing text, formatting, images, and other content in a ZIP-compressed package of XML files.
DSD/DSF (Direct Stream Digital)
181LA high-resolution audio encoding using 1-bit sigma-delta modulation at very high sample rates, originally developed for Super Audio CD (SACD) and favored by audiophiles.
DWG AutoCAD Drawing
204LThe DWG file format — AutoCAD's proprietary binary format for 2D and 3D CAD drawings, the de facto standard in architecture, engineering, and construction (AEC).
DXF AutoCAD Exchange Format
257LThe DXF file format — AutoCAD's documented exchange format for sharing 2D and 3D CAD data across different applications without proprietary DWG constraints.
.env
227LEnvironment variable configuration files — simple key-value files for storing application secrets and environment-specific settings, loaded at runtime.
EPS Image Format
201LEPS is a PostScript-based vector/raster file format historically used for
EPUB (Electronic Publication)
152LThe open standard ebook format maintained by the W3C, packaging XHTML content, CSS styling, images, and metadata into a single ZIP archive for reflowable digital reading.
EXE Windows Executable
235LThe EXE file format — Windows Portable Executable (PE) format for applications, DLLs, drivers, and services, covering structure, signing, security, and analysis.
EXR Image Format
209LOpenEXR is a high dynamic range image format developed by Industrial Light &
FBX Autodesk Interchange
221LThe FBX 3D interchange format — Autodesk's industry-standard format for transferring 3D models, animations, and scenes between DCC tools and game engines.
FLAC (Free Lossless Audio Codec)
158LAn open-source lossless audio compression format that reduces file size by 50-70% while preserving bit-perfect audio fidelity.
FLV (Flash Video)
167LFLV is the legacy Flash Video container format that once dominated web video delivery through Adobe Flash Player, now obsolete but still encountered in archives.
GeoJSON
312LGeoJSON geographic data format — a JSON-based format for encoding geographic features with geometry and properties, standardized as RFC 7946.
Animated GIF
171LAnimated GIF is the classic bitmap animation format using the GIF89a specification, supporting frame-based animation with palette-limited color and transparency.
GIF Image Format
149LGIF is a bitmap image format supporting up to 256 colors per frame, widely
glTF/GLB 3D Web Format
228LThe glTF and GLB 3D formats — Khronos Group's open standard for efficient 3D asset delivery on the web, in AR/VR, and across real-time rendering applications.
GraphQL
358LGraphQL schema definition language and query files — a typed API query language and schema system for defining data graphs and client-driven data fetching.
GZIP Compression
171LThe GZIP compression format — the ubiquitous single-file compressor built on DEFLATE, essential for tar.gz archives, HTTP content encoding, and Unix/Linux workflows.
HDF5
254LHierarchical Data Format version 5 — a binary file format for storing large-scale numerical data, widely used in scientific computing, machine learning, and simulation.
HEIC/HEIF Image Format
168LHEIC/HEIF is a modern image container format using HEVC compression, adopted
HTML (HyperText Markup Language)
157LThe foundational markup language of the World Wide Web, defining the structure and content of web pages through elements, attributes, and a document object model.
ICalendar
341LiCalendar (.ics) event format — the universal standard (RFC 5545) for exchanging calendar events, scheduling, and time-based data between applications.
ICO Image Format
157LICO is the image file format used for icons in Microsoft Windows, containing
INI
195LINI configuration file format — a simple, flat key-value format organized by sections, used in legacy Windows applications and many Unix-style config files.
IPA iOS Application Archive
244LThe IPA file format — Apple's iOS application package containing compiled Mach-O binaries, resources, entitlements, and provisioning profiles for iPhone and iPad apps.
Jupyter Notebook
314LJupyter Notebook format (.ipynb) — a JSON-based document format combining live code, equations, visualizations, and narrative text in computational notebooks.
ISO Disk Image Format
190LThe ISO 9660 disk image format — the standard for optical disc images, OS installation media, and software distribution as mountable virtual discs.
JPEG/JPG Image Format
163LJPEG is the most widely used lossy compressed image format, optimized for
JSON
164LJavaScript Object Notation — lightweight text-based data interchange format used nearly everywhere in web APIs, config files, and data storage.
JPEG XL Image Format
213LJPEG XL is a next-generation image format designed as the universal successor
KEY (Apple Keynote Presentation)
158LApple's proprietary presentation format for Keynote, featuring cinematic animations, high-quality rendering, and tight integration with the Apple ecosystem.
LaTeX/TeX (Academic Typesetting)
177LA document preparation system and typesetting language built on Donald Knuth's TeX engine, the gold standard for academic papers, theses, and documents requiring precise mathematical notation.
Lottie (JSON Animation)
233LLottie is a JSON-based vector animation format created by Airbnb that renders After Effects animations natively on web, iOS, and Android at tiny file sizes.
HLS (HTTP Live Streaming)
199LHLS is Apple's adaptive bitrate streaming protocol using M3U8 playlists and segmented media files, the most widely deployed streaming technology for live and on-demand video.
M4A (MPEG-4 Audio)
176LAn MPEG-4 container format for audio, typically holding AAC or Apple Lossless (ALAC) encoded content, widely used in the Apple ecosystem.
Markdown (.md)
160LA lightweight plain-text markup language that uses intuitive punctuation-based syntax for formatting, widely used for documentation, README files, notes, and web content.