Wide command coverage
Provides a broad set of commands for unit and currency conversion, encoding, hashing, file conversion, formatting, validation, generation, lookup, and calculation tasks from one CLI.
openGyver
openGyver is an open source Go command-line toolkit for conversions, encoding, hashing, formatting, validation, and related utility tasks. It is built as a single binary for Linux, macOS, and Windows and is designed for standalone use, scripts, CI/CD pipelines, and AI agent workflows.
Open source CLI for conversions and utility tasks
openGyver is an open source command-line toolkit for common conversion and utility work. The repository describes it as a “Swiss-army-knife” CLI with 47 commands and 180+ subcommands covering everyday tasks such as conversion, encoding, hashing, generation, formatting, validation, and lookup.
It is built in Go and packaged as a single binary for Linux, macOS, and Windows. The project is intended to run standalone or be hooked into CI/CD pipelines, shell scripts, and AI agents, and the README also points to a Claude Code plugin path for using openGyver as native tools.
Core capabilities
Flexible output modes
Supports multiple output modes such as JSON, abbreviated values, and quiet output so the same command can work in scripts, terminals, and agent workflows.
Multi-format conversion
Includes conversion commands for images, audio, video, ebooks, presentations, documents, CAD files, fonts, and vectors, with examples of formats and external tool support noted in the README.
Data and text tooling
Bundles utilities for data transformation and inspection, including JSON formatting and querying, YAML/TOML/XML/CSV conversion, diffing, regex operations, and validation.
Generators and lookups
Adds generators and reference tools such as password, UUID, QR, barcode, stock, weather, time, network, color, phone, mime, and ASCII utilities.
Single-binary distribution
Is built in Go and distributed as a single binary, which the repository positions as suitable for Linux, macOS, and Windows without extra runtime dependencies.
Common ways to use openGyver
Everyday conversion work
Run quick unit, currency, time, color, and file-format conversions from the terminal without switching between separate utilities.
Scripting and CI workflows
Use JSON, abbreviated, or quiet output modes in shell pipelines, scripts, and automation jobs where predictable output matters.
Developer generation tasks
Generate passwords, UUIDs, QR codes, barcodes, test data, and other throwaway values when building or testing software.
Data and document handling
Format, validate, diff, and transform JSON, YAML, XML, CSV, HTML, SQL, and related text formats during data cleanup or debugging.
Agent-assisted tooling
Integrate the CLI into Claude Code or other agent-driven workflows where tools for encoding, lookup, conversion, and inspection need to be available on demand.
Pros and Cons
Pros
- Covers a wide range of common conversion and utility tasks in one CLI.
- Supports machine-friendly JSON output and abbreviated modes for scripting.
- Built as a Go binary for straightforward distribution across major desktop platforms.
- Fits standalone use as well as automation and agent workflows.
- Includes documented commands for many practical formats, references, and generators.
Cons
- Some commands depend on external tools or live data sources, so behavior is not fully self-contained for every workflow.
- The project is broad rather than specialized, so users looking for a single narrow converter may find the surface area larger than they need.
FAQ
How do I install openGyver?
It is a Go-based command-line tool. The repository notes a zero-dependency, single-binary distribution and provides build instructions with `go build` as well as installation via Homebrew or `go install`.
What environments is openGyver designed for?
The repository highlights standalone CLI use, plus workflows for CI/CD pipelines, shell scripts, and AI agents. It also lists a Claude Code plugin route for using openGyver as native tools.
What kinds of output does openGyver support?
The README shows commands that return JSON, abbreviated values, or quiet output, depending on the task. For example, conversion commands can emit structured JSON, and some commands support single-value or silent modes.
What can openGyver be used for?
The project covers conversion, encoding, hashing, generation, formatting, validation, lookup, math, finance, crypto, and archive tasks. The command list includes tools for files, media, text, time, network, and reference lookups.
Are there any limitations or dependencies to know about?
The repository presents the project as a broad conversion and utility CLI rather than a focused single-purpose app. Some commands depend on external tools or services, such as ffmpeg, LibreOffice, Calibre, or live data sources for currency, stock, and weather lookups.
Quick Facts
- Category
- Developer Tool
- Primary format
- Command-line application
- Runtime
- Go
- Distribution
- Single binary
- Platforms
- Linux, macOS, Windows
- Source domain
- github.com
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