Open-source alternatives to PKHeX

This tool is a command-line processor designed for querying, updating, and transforming structured data files. It functions as a versatile engine for manipulating YAML, JSON, TOML, and XML documents, allowing users to perform complex operations directly from the terminal. By utilizing a path-based expression language, it enables precise navigation and modification of data structures within configuration files and infrastructure-as-code workflows. What distinguishes this tool is its ability to perform in-place document mutations while preserving original formatting, comments, and metadata. It

omni-tools is a browser-based utility suite that provides client-side tools for manipulating PDFs, media files, and data formats. It functions as a collection of web-based processors and calculation engines that execute directly within the browser without requiring server-side processing. The suite includes a client-side PDF editor for merging, splitting, and reorganizing document structures, and a web-based media processor for resizing, trimming, and converting image and video files. It also features a data format converter that transforms structured information between JSON, CSV, and XML fo

miniblink49 is a stripped-down Blink browser kernel and embedded web UI framework used to integrate HTML user interfaces into native C++ applications. It functions as a C++ JavaScript interop bridge that maps high-level script calls to low-level native logic and provides a resource-optimized headless browser engine for processing web content without a graphical interface. The project enables custom browser environment control by bypassing cross-origin security policies to allow requests across different domains. It further allows for the interception of network resources to replace remote ass

Photon is a high-performance image processing library written in Rust. It serves as a pixel manipulation toolkit and image format transcoder, providing a WebAssembly graphics engine for executing visual effects and transformations directly within web browsers. The project is built around a functional image pipeline, which allows for the programmatic chaining of sequential transformation operations. This architecture supports the creation of complex visual effects through a coded pipeline. The library covers a wide range of image processing capabilities, including color management across mult

Dasel is a multi-format data processor and structured data query tool used for querying, editing, and converting data across JSON, YAML, TOML, and XML. It functions as a universal data converter and a cross-format configuration editor that allows users to interact with various serialization formats through a single unified interface. The tool provides a selector-based interface for extracting and searching nested values and modifying keys and values across different file types. It enables the transformation of data between supported structures to change file types while preserving the origina

Jackson-databind is a Java serialization framework and JSON data binding library used to convert Java objects to JSON and vice versa. It functions as a JSON streaming API that generates and parses content as a sequence of tokens, and as a hierarchical data tree mapper that reads data into a node structure for dynamic modification without predefined classes. The project provides a structured mapping process to bind data to objects, allowing for the transformation of complex Java objects into data formats and the reconstruction of objects from those formats. It supports custom data format mappi

csvkit is a composable Unix-style command-line toolkit for converting, filtering, and analyzing CSV files directly from the terminal. It provides a suite of focused single-purpose commands that can be combined via pipes to build complex data processing workflows, with a modular architecture that includes a column-type inference engine for automatically detecting data types and a streaming-pipeline design for efficient handling of tabular data. The toolkit distinguishes itself through its SQL-engine abstraction layer, which allows users to run SQL queries directly against CSV files without req

TimelineJS is a JavaScript library for creating interactive, chronological narratives and visualizing multimedia sequences. It functions as a tool for data-driven storytelling, rendering a navigable interface where events are organized by date. The system generates these narratives by importing event information from external sources, such as JSON files or spreadsheets. It transforms external media links into embedded video and audio elements and synchronizes the current view with the browser address bar to allow for direct linking and bookmarking. The library covers broad capabilities for d

Baserow is a no-code relational database and application builder that allows users to create structured data tables and business tools through a visual interface. It functions as a headless REST API data backend and a self-hosted data workspace, providing a platform for managing collaborative databases while maintaining full control over data residency. The platform integrates large language models to serve as an LLM-powered data platform, capable of generating database structures, record content, and technical workflows from natural language. It also acts as a Model Context Protocol server,

SeaTunnel is a distributed data integration engine designed to synchronize structured and unstructured data across diverse sources and sinks. It functions as a multi-engine execution framework that can run data integration tasks across different distributed computing backends to optimize workload performance. The project is distinguished by a visual data pipeline designer for configuring workflows without manual code and a specialized change data capture tool for streaming incremental database updates. It also includes an enrichment pipeline that integrates large language models and embedding

Steam Achievement Manager is a game achievement editor and specialized API client designed to modify and unlock game achievements and statistics for titles on the Steam platform. It functions as a utility for manually changing the state of earned rewards and milestones while the client is running. The tool provides capabilities for steam profile customization and game statistic manipulation, allowing users to adjust displayed progress and achievement states. It operates by interfacing with the platform backend to update user profile data.

DevToysMac is a native macOS developer utility suite designed to encode, decode, and transform common data formats. It serves as a centralized tool suite for formatting and converting developer data into human-readable or machine-compatible strings. The application provides a set of tools for developer data manipulation, including JSON validation and formatting, Base64 encoding and decoding, and URL encoding and decoding. It also includes a text manipulation toolkit for cleaning up configuration files and developer logs through common string operations. The software is built as a SwiftUI des

crypto-js is a JavaScript cryptography library providing a collection of standard cryptographic algorithms and data transformation tools. It functions as a symmetric encryption toolset, a cryptographic hash implementation, and a password derivation tool for the JavaScript environment. The library enables the protection of sensitive data through symmetric encryption and the production of fixed-size data digests to verify integrity. It includes utilities for converting user passwords into secure cryptographic keys and a data format converter for translating information between Base64, Hex, and

TShock is a server management tool and plugin framework for dedicated Terraria servers. It functions as an administrative suite and anti-cheat tool designed to control player permissions, monitor game integrity, and extend server functionality. The project provides a framework for creating custom plugins that modify the game world and implement new commands. It enables internal state modification through bytecode injection, packet interception, and memory manipulation to bypass engine restrictions and alter live game environments. Administrative capabilities include a hierarchical role-based

DevToys is a cross-platform desktop application that functions as a comprehensive suite of offline utilities for common software development tasks. It provides a unified interface for performing data formatting, encoding, validation, and asset generation locally without requiring an internet connection. The application is built on a plugin-based extensibility framework that allows users to integrate custom utility modules to meet specific technical requirements. A core differentiator is its clipboard-aware management system, which monitors clipboard content to automatically suggest or open th

Vector is a high-performance observability data pipeline designed to collect, transform, and route logs, metrics, and traces across distributed infrastructure. It functions as a modular engine that decouples data ingestion from processing and transmission, utilizing a component-based architecture to connect diverse sources to multiple destinations. The project distinguishes itself through a focus on reliability and flow control. It implements backpressure-aware data movement to prevent data loss during traffic spikes and utilizes disk-backed event buffering to ensure durability during network

This project is a Java-based toolkit that integrates the OpenCV computer vision library into the Processing creative coding environment. It provides a programming interface designed to facilitate the inclusion of real-time image analysis and computer vision algorithms within interactive art installations and visual design projects. The library distinguishes itself by wrapping low-level C++ routines into a managed environment, allowing users to perform complex visual tasks through a simplified interface. It supports high-performance operations by sharing raw pixel data between the host environ

ExifTool is a command line application and batch metadata processor used for reading, writing, and editing EXIF, IPTC, XMP, and other metadata in image and video files. It functions as a file metadata editor and image metadata extractor capable of modifying embedded internal properties across a wide variety of supported file formats. The tool specializes in extracting camera maker notes and industry standard descriptors from digital media. It supports metadata migration workflows, allowing embedded information to be copied from a source file and applied to a destination file. The utility cov

AndroidUtilCode is an Android utility library and system API wrapper designed to reduce development boilerplate. It provides a collection of helper classes for common tasks including system settings management, file I/O, and hardware access. The project distinguishes itself through a comprehensive toolset for device management and UI assistance. It includes specialized capabilities for monitoring battery status, managing system volume and brightness, and implementing UI helpers to prevent duplicate click events. It also provides a dedicated system for coordinate conversion between different m

LogicFlow is an SVG-based flowchart editing framework and visual graph editor used for building customizable business process diagrams. It serves as a customizable diagramming engine for rendering business process models, entity relationship diagrams, and unified modeling language charts. The system is characterized by a plugin-based architecture that allows developers to define specialized graphical elements and register pluggable modules. A distinctive feature is its overlay system, which positions standard HTML components on top of the SVG canvas to create interactive menus and control pan

This is a desktop HTTP client application used for constructing, sending, and analyzing HTTP and GraphQL requests. It provides a graphical interface for API development and testing, including a dedicated GraphQL client with schema-driven autocomplete and validation. The project features an integrated AI assistant that generates API requests from natural language prompts. It supports a complex organization system of spaces and collections with hierarchical authentication inheritance and recursive variable resolution for dynamic request values. The tool covers a broad range of capabilities, in

Hazelcast is a distributed data platform that combines an in-memory data grid with a stream processing engine to support real-time analytics and event-driven applications. It functions as a partitioned, distributed key-value store that replicates data across cluster nodes to provide low-latency access and high availability. The platform also serves as a distributed SQL query engine, allowing users to execute standard SQL statements against both in-memory datasets and external data sources. What distinguishes Hazelcast is its use of a distributed consensus subsystem to maintain strongly consis

WTM is a development framework for building enterprise server and client applications using .NET Core. It functions as a rapid application development tool that provides a set of generators and wizards to automate the creation of project structures and boilerplate code. The framework includes a low-code UI builder that utilizes a shared library of controls to construct forms, grids, and dialogs across multiple frontend libraries. It further automates development through template-based code generation and a configuration-driven project bootstrapping wizard. The system handles enterprise data

HexFiend is a native macOS hex editor designed for opening and editing binary files of any size without loading them entirely into memory. It uses a 64-bit addressable data model with memory-mapped file access, enabling navigation of multi-gigabyte files while maintaining byte-level undo for insert and delete operations. The editor distinguishes itself through a diff algorithm for binary file comparison that accounts for insertions and deletions, and a template-based structure parsing system that uses user-defined scripts to visualize binary file layouts. It also includes a typed data interpr

CoreStore is a type-safe Swift interface and persistence wrapper for managing local data storage and object graphs using the Core Data framework. It functions as an atomic persistence manager that executes data updates within transactional blocks to ensure changes are either fully saved or rolled back to prevent state corruption. The project provides a dedicated framework for performing sequential schema migrations through defined version chains and a type-safe object mapping system for importing external JSON data into persistent entities using Swift protocols. It includes a data binding la

Fava is a web-based dashboard and query tool for visualizing and analyzing financial records stored in Beancount plain-text ledger files. It serves as a double-entry bookkeeping viewer and plain-text accounting dashboard that renders ledger files as interactive reports, searchable financial tables, and visual tools for exploring balance sheets and income statements. The project distinguishes itself through a specialized BQL query interface that executes SQL-like queries against postings to extract specific financial data and trends. It includes a financial data visualization system for genera

Surge is a Swift library for high-performance numerical analysis, linear algebra, digital signal processing, and accelerated image manipulation. It utilizes the Accelerate framework to provide hardware-accelerated tools for matrix mathematics and signal processing. The library provides specialized capabilities for digital signal processing, including convolution, signal similarity analysis through cross-correlation, and domain transformations using fast Fourier transforms. It also includes a suite of tools for the rapid transformation and analysis of pixel buffers and image data. Beyond sign