A professional video compression tool accessible to all, mostly based on FFmpeg.

JODConverter automates document conversions using LibreOffice or Apache OpenOffice.

The JAVE (Java Audio Video Encoder) library is Java wrapper on the ffmpeg project

jPSXdec: cross-platform PlayStation 1 audio and video converter

🍬 A library converting XLS and XLSX files to a list of Java objects based on Apache POI

Bits'N'Picas - Bitmap & Emoji Font Creation & Conversion Tools

Converts multisamples from a source format (WAV, multisample, KMP, wavestate, NKI, SFZ, SoundFont 2) to a different destination format.

A converter that generates a bash one-liner from an SQL Select query (no DB necessary)

A multi platform image density converting tool converting single or batches of images to Android, iOS, Windows or CSS specific formats and density versions given the source scale factor or width/height in dp. It has a graphical and command line interface and supports many image types (svg, psd, 9-patch, etc.) aswell as some lossless compressors …

Reads and writes thousands of different archive and image formats used in games.

[⚠️ARCHIVED] A Converter implementation using LoganSquare JSON serialization for Retrofit 2.

A utility that allows Minecraft: Java Edition resource packs to work in other versions accurately and effectively.

OST2PST - converts Outlook OST files to PST format

Converter written in Java to convert between different Bible program formats

🚥 A dataset migration tool from MongoDB to Elasticsearch and vice versa.

Converts HL7 v2 Messages to FHIR Resources

OSM planet dump high performance data loader. Transform OpenStreetMap World/Region PBF dump into partitioned by H3 regions PostGIS pgsnapshot (lossless) OSM schema representation and/or into ArrowIPC/Parquet dumps

A converter for the OSM PBFs to Parquet files

Highly configurable converter from JSON-schema to XML-schema (XSD).

A flexible Java text processor. BB, BBCode, BB-code, HTML, Textile, Markdown, parser, translator, converter.