Changelog

( English / Japanese )

v0.7.0

May 6, 2026

Bug fixes

• Fix status line displaying internal object instead of search query (e.g. "3.0") (#100)

New features

• Add key bindings to jump to the nearest parent-level bracket, or to the matching pair when on a bracket ([, {, ], }). (#99)

Improvements

• Improved search behavior: (#101)
  • Unquoted input (e.g. 3.0) now matches both numeric values (e.g. 3) and strings containing the value (e.g. "3.0")
  • Quoted input (e.g. "foo") matches string values only, using substring matching
  • Boolean and null literals are excluded from string matching

v0.6.1

May 3, 2026

• Use "mattn/go-tty" v0.0.7 on Windows and "golang.org/x/term" on non-Windows for tty input (#95)
• Export subpackages "source", "types" and "unjson" (#97)

v0.6.0

Apr 30, 2026

Bug fixes

• Fix readline handling for -auto option in CLI mode (#91)

New features

• Add F1 key to open the help screen (#89)
• Add JSON path navigation using '@' to jump to a specific item (#90)
• Add an application-local clipboard to the readline component. (#93)

v0.5.0

Apr 24, 2026

Bug fixes

• Fix EOF error when parsing identifiers starting with 'f', 't', or 'n' (#84)

New features

• Undo support for replace operations (r, R) (#69)
• Undo support for deletions (#69)
  • Deleted elements are now marked as <DEL> instead of being removed immediately
  • Press u to restore deleted elements
  • <DEL> entries are omitted when saving, so deletions are finalized on disk
• Allow deleting non-empty containers by collapsing them into <DEL> markers (#70)
• Support collapsing and expanding objects and arrays with z (#71)

Improvements

• Improve search: now matches both keys and values, case-insensitive (#68)
• Improve readline input: (#74)
  • Add filename completion for "w" command
  • Enable history and prediction
  • Preload common JSON literals ( null, false, true, "", {}, [] )
• Add background JSON loading support (improves startup time for large files) (#79)

v0.4.0

Apr 17, 2026

• Display current JSON path and value in status line (#62, #63)
• Add shortcut (Ctrl-C) to copy current path and value (#64)
• Value search feature (#65)
  • / : search forward
  • ? : search backward
  • n : repeat search in the same direction
  • N : repeat search in the opposite direction
  • Search applies to values only (keys are ignored)
  • Search input follows the same rules as the o command:
    • "text" → string
    • 123, 1.23 → number
    • true, false, nil → literals
    • others → treated as a string
• Add Key bindings to reset horizontal scroll and return to column 0: 0, ^ (#66)

v0.3.1

Apr 14, 2026

• Preserve colon spacing when adding object pairs with "o" (#57)
• Improve rendering of non-JSON text by normalizing whitespace and preserving visible characters instead of escaped string representation (Thanks to @rinodrops, #51, #58)

v0.3.0

Apr 14, 2026

• Support JSON wrapped in JavaScript assignments (as used in X/Twitter archives) (#44)
• Show a simple progress animation during save (#45)
• Add -auto option to simulate key and readline inputs for testing (#46)
• Add page up/down navigation (Space / b, PageUp / PageDown) (#49)
• Fix string rendering to preserve original representation (avoid HTML escaping) (#50)
• Fix issue where newline before closing brace and comma placement were incorrect in saved output when adding a pair with "o" (Thanks to @rinodrops, #51, #54)

v0.2.1

Apr 12, 2026

Bug Fixes

• Fix parsing issue where empty arrays or objects containing whitespace caused incorrect nesting (#40)
• Fix error propagation so messages are not lost (#41)
• Fix bug where \" was incorrectly recognized as an escaped quote when preceded by an even number of backslashes (#42)

v0.2.0

Apr 12, 2026

Data Integrity

• Preserve original JSON formatting as much as possible when saving (#11, #12):

  • whitespace around tokens
  • indentation and line endings
  • object key order
  • literal representations (e.g. escape sequences)
  • trailing non-JSON data is preserved as a virtual element (RawBytes) (#19)
  • separators between top-level elements in JSONL (#16)

• Highlight modified values (#14)

Usability Improvements

• Add horizontal scrolling for long lines (#22):

  • l, Right Arrow, Ctrl-F: scroll right
  • h, Left Arrow, Ctrl-B: scroll left

• Normalize save/quit prompt behavior:

  • Treat non-Yes/No input as cancel (#32)

Readline Improvements

• Add SKK-based Japanese input support using nyagosorg/go-readline-ny (#23)

• Improve JSON key input UX (#29): Quotes are now rendered automatically when editing object keys, so users do not need to type them explicitly.

CLI and I/O Improvements

• Support multiple input files and wildcards, and allow explicit stdin input using - (#18)

• Support I/O redirection (#31):

  • Render UI to stderr when stdin is redirected
  • Output to stdout when - or an empty filename is specified

Bug Fixes

• Fix modified mark (*) being appended to unrelated messages (#32)
• Change Ctrl-L behavior during input (e.g. cell or filename editing) (#37):
  • Redraw the current input instead of clearing the entire screen.
  • Update go-readline-ny to v1.14.3 supporting redrawing the current input.

v0.1.0

Apr 5, 2026

• Preserve object key order when loading and saving JSON (#2)
• Preserve indentation width and line endings when saving JSON (best-effort) (#3)
• Improve JSON parser error messages with line and column information (#4)
• Use alphabet keys instead of numeric keys for type selection in Shift+R (#5)
• Place the cursor before the file extension when editing the save filename (#6)
• Preserve trailing newline at EOF when saving JSON (#7)
• Output empty objects and arrays as {} and [] without extra newlines (#8)
• Avoid marking the document as modified when a value is updated without actual changes (#9)

v0.0.1

Apr 4, 2026

• Initial version