37.0.0

Fx is terminal JSON viewer & processor.

In this release:

🔢 Go To Line (Vim-Style)

Quickly jump to any line using :42 syntax.

🧮 JSON Parsing Enhancements

• Support for special values: Infinity, -Infinity, NaN
• New --strict flag to enforce standard-compliant JSON only

🛠 Fixes & Improvements

• Corrected object node previews
• More precise error messages

$ fx .anton/events.json --strict
Unexpected character 'I' on line 290519.

      "confidence": Infinity,
  ..................^

🏃‍♂️ Data Utilities

• Added walk function for recursive data transformation:

walk(x => typeof x === "number" ? x.toString() : x)

• The map function now supports object mapping.

---

36.0.4

This update introduces several small but meaningful improvements to fx:

• When opening an empty file, the spinner now stops immediately—making it clear that the file is, in fact, empty.
  No more pointless spinning. 🙂
• I’ve removed a confusing indexing label from the status bar when loading large files.
• The spinner has been relocated to the right corner for better clarity.
• Additionally, in streaming mode, the spinner will now keep spinning until the end of the file is reached.

36.0.3

• Added ctrl+z to suspend program.
• Added v to open JSON in $EDITOR line vim.

36.0.2

• Improved autocomplete for JSON and YAML in zsh.
• Added toBase64 and fromBase64 builtins.
• Added YAML.parse and YAML.stringify builtins.

36.0.1

• Fixed JSON unmarshal for unquote #337

36.0.0

Fx is terminal JSON viewer & processor.

In this release:

• Added support JSON streaming in interactive mode!
  • Added autoscroll to bottom of new incoming JSON messages.
  
• Improved JSON parsing speed and memory usage!
  • Opening huge JSON files ~4GB now takes half the mem size!
• Fixed jumps with J/K over wrapped strings.
• Fixed pageup and pagedown movements. Now they work same as in vim!
• Added loading spinner for big JSON files.
• Added better expand/collapse e/E support with multiple JSON objects.
• Added better previews of collapsed nodes.
• Fixed support for multiple documents in single YAML file.
• Added FX_COLLAPSED=1 option to start in collapsed view.
• Added support to display plain text in interactive mode.
  • Added support for HTTP headers with curl -i ... | fx.
  
• Added base64 images preview.
• Added jumping back/forward in locations history with [ ] keys.
• Added goto symbol with @ key.
• Added s key to show/hide array/object sizes.
• Added go to ref with ctrl+g.
• Added line numbers with option FX_LINE_NUMBERS.
  • Added scroll percentage in status bar.
  
• Added edit-in-place save function!

  fx example.json 'x.name = x.name.toUpperCase(), x' save

35.0.0

Fx is terminal JSON viewer & processor.

In this release:

• Fixed a bug with very long arguments 44e7388
• Fixed a bug with closing profiles properly (#307)
• Fixed bash autocomplete for files without newline at the end (#304)
• Fixed a bug with --raw flag reading files without newline at the end e465f7d
• Updated dependencies 48a9ee9

34.0.0

Fx is terminal JSON viewer & processor.

In this release:

• Now fx has a built-in JS engine! So, JSON processing will work everywhere!
• Added list function to print array as list of strings.
• Fixed yanking of wrapped object keys.

33.0.0

Terminal autocomplete

This release adds terminal autocomplete for fx command. It's available for bash, zsh, and fish.

New configuration options

• FX_SHOW_SIZE - show the size of the arrays and objects
• FX_NO_MOUSE - disable mouse support
• FX_THEME - set the theme for the output

32.0.0

YAML support

Now you can use fx to view and process YAML files!

fx example.yaml
# or 
cat example.yaml | fx --yaml

Fx will automatically convert YAML to JSON. The npm version of fx also supports YAML and provides YAML.parse and YAML.stringify functions.

npx fx example.yaml '.jobs.test.steps' YAML.stringify

Expand with 1-9 keys

Now you can use 1-9 keys to expand nested objects and arrays up to nth level.

Keybindings help

Type ? to see all available keybindings. Press ? again to close the help.

Preview mode

Type p to toggle preview mode. In preview mode, strings are unquoted and newlines are preserved.

This is useful when you want to see content of a long string.

Print to stdout

Type P to print the currently selected value to stdout. This is useful when you want to pipe the output of fx to another command.

curl https://fx.wtf/example.json | fx > part.json

Docker image

Now you can use fx as a Docker image.

docker run -it --rm -v .:/data:ro antonmedv/fx file.json