Dadroit JSON Viewer vs jaq

Dadroit JSON Viewer displays JSON in a tree so users can browse and query structured data, including large files. The desktop viewer supports text and RegEx search with highlighted results and navigation, and it can read JSON-Lines and ndjson logs. Users can load JSON responses from a URL, authenticate when needed, combine multiple files into one searchable dataset, and export a selected node or the full dataset to CSV or XML. The viewer can monitor files and refresh the view automatically when they change. Desktop downloads are listed for Windows 64-bit, macOS, and Linux 64-bit; V Web runs in a browser. Dadroit says V Web processes JSON locally without sending or storing files, responses, or tokens on its servers. The Non-Commercial plan is free for personal, educational, and open-source use, with files up to 50 MB. Standard costs $98 a year, supports commercial use, and allows files up to 2 GB. Advanced costs $198 a year, supports files up to 1 TB, and includes file union. A free trial is not offered.

jaq is a free jq clone for querying and transforming data, available as both a command-line replacement and a Rust library for compiling and running jq programs. Alongside JSON, it handles YAML, CBOR, TOML, XML, CSV, and TSV, and can convert between those formats while applying a jq filter. Its jaq-core library supports multithreaded use and data types beyond JSON. jaq also accepts arbitrary values as object keys and can process strings containing arbitrary bytes, including invalid UTF-8. The project publishes benchmarks comparing jaq with jq and gojq, and reports faster results on many benchmarks. It states that jaq is memory-safe and prevents input data or filters from initiating I/O, although filters may read files before execution. The project also warns that it does not guard against resource exhaustion, so processing may use unlimited time, memory, or stack space. Binary downloads and installation instructions are provided for Linux, macOS, and Windows, and an online playground is available. jaq is MIT-licensed.