399 Open source projects that are alternatives of or similar to Core

A self-hosted, drag-and-drop, & nosql file conversion server that supports 62x file formats.

Muxes and converts videos from YoutubeExplode

Pokémon Save File Editor

Declarative JSON-to-JSON mapper .. shape-shift JSON files with Ditto 👻

Pure JavaScript library for converting HTML into valid Markdown

A command-line and ruby API of utilities, converters and tools for creating, converting and processing security baseline formats, results and data

headers 2 curl. Provided a set of HTTP request headers, output the curl command line for generating that set. Try the converter online at

Convert HTML to a Quill Delta or a Quill Delta to HTML

A fairly non-abstracted wrapper for Google's V8 JavaScript engine.

A Swift VoiceConverter between AMR format and WAV format

A tool to convert AWS EC2 instances back and forth between On-Demand and Spot billing models.

Convert Genshin Impact audio files into a playable format

Синхронизация хранилища конфигурации "1С:Предприятия" с репозиторием Git и последующим переходом на разработку в 1C:Enterprise Development Tools (1C:EDT) с сохранением истории

The API for generating high quality images from HTML/CSS.

'json-node-normalizer' - NodeJS module that normalize json data types from json schema specifications.

OST2PST - converts Outlook OST files to PST format

Node.js packages for converting SVG into other formats using headless Chromium

Easy tools of document, image, file, network, location, color, and media.

Utilities for converting from C/C++ include guards to #pragma once and back again.

Sogou input method skin file (.ssf file) converter, supports conversion to fcitx or fcitx5 format.

PDF exporter for HTML presentations

A minimalist bytecode compiler for Node.js

Turn your videos into palette-mapped gifs with this easy script

Minimal Rust binding to V8 (based on ry/libv8worker2)

V8 javascript bindings for Rust

A Utility Library for Wikipedia dumps

A kramdown extension for converting Markdown documents to AsciiDoc.

monomorphist - a JavaScript performance companion

Bash script to convert video files into Google Chromecast supported format.

A tool that converts TypeScript definitions into Closure Compiler externs.

A simple but powerful Epoch converter

Short python framework that dynamically displays and converts the cryptocurrencies in your Kraken wallet into equivalents fiat money.

Convert (almost) anything to JSON

📃 Asciidoctor PDF: A native PDF converter for AsciiDoc based on Asciidoctor and Prawn, written entirely in Ruby.

🌌 Collection of articles and tools to efficiently profile Node.js

🔧 A list of Crankshaft bailout reasons with examples

Resolving Swagger/OpenAPI 2.0 and 3.0 Parser

Convert GraphQL to mobx-state-tree models

Convert HTML to Markdown with PHP

Web Assembly to Kotlin and Java converter. Allows to compile a C or C++ program/library, and generate a Kotlin or Java program/library.

Node LLVM 4.0+ Bindings

Converter from OpenStreetMap data format to OpenOrienteering Mapper format.

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

CEF4Delphi is an open source project to embed Chromium-based browsers in applications made with Delphi or Lazarus/FPC for Windows, Linux and MacOS.

Converts Optical Flow files to images and optionally compiles them to a video. Flow viewer GUI is also available. Check out mockup right from Github Pages:

Node.js virtual machine for Android and iOS

Persian and Gregorian Date Converter for Python 2 and Python 3

Makes life working with units of measurement just a little bit better.

V8 Javascript Engine for PHP — This PHP extension embeds the Google V8 Javascript Engine

🔌 Convert Bootstrap CSS code to Tailwind CSS code

A ruby gem to liberate content from Microsoft Word documents

A carefully crafted Org exporter back-end for Hugo

A JavaScript compiler written in TypeScript targeting C++/V8

Execute JavaScript from Go

curl to C# converter

Transform text files to XML, JSON, or YAML

Data formatter that creates simplified objects from JSON or stored reduxObject, creates JSON from the same simplified objects (in according with JSON API specification)

Translates TOML into a Go type in your browser instantly

Conversion utility to translate legacy data formats into FHIR

Material design YouTube mp3/mp4 downloader