fdupes vs jq
fdupes
github.comjq
jqlang.orgSide by side
| Figure | fdupes | jq |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 1 |
| Spec score · Cli Tools | 7.8 (#16) | 8.6 (#4) |
| Spec score · Command Line Tools | 7.7 (#18) | 8.5 (#6) |
| License | The software is provided free of charge under terms that permit use, copying, modification, distribution, sublicensing, and sale of copies. | jq code is licensed under the MIT license, while its documentation is licensed under CC-BY-3.0. |
| Purpose | fdupes identifies duplicate files within specified directories and can delete selected duplicates. | jq is a lightweight, flexible command-line JSON processor for slicing, filtering, mapping, and transforming structured data. |
| Security | GitHub reports that the project has no SECURITY.md policy and no published security advisories. | SHA-256 checksums are provided for release and pre-release binaries, and release artifacts are signed by a jq release key. |
| Support | The README lists Adrian Lopez’s email address for contact; no formal support plan is described. | The project points users to Stack Overflow, the #jq Libera.Chat channel, and its Discord server for questions and discussion. |
Plans
In their own words
jq
jq is a free command-line processor for selecting and transforming JSON data. A jq filter takes an input and produces output; filters can be combined to access nested attributes, construct objects, gather results into arrays, or make other transformations. It reads whitespace-separated JSON values and writes serialized results separated by whitespace. Each expression runs on each input value and may produce zero or more outputs. For very large inputs, the --stream option parses incrementally. Output options include compact, raw, ASCII, sorted-key, and colored forms. Written in portable C, jq has no runtime dependencies, and a standalone binary can be copied to another machine of the same type. Standalone executables are available for Linux, macOS, and Windows, with packages listed for Linux distributions and package managers including Homebrew, MacPorts, winget, Scoop, and Chocolatey. A Docker image is also available. Release binaries have SHA-256 checksums, and signed release artifacts use jq release keys. The code is licensed under MIT; the documentation uses CC-BY-3.0.