JSONedit v0.9.45 - Free Download



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File - Download JSONedit v0.9.45
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JSONedit v0.9.45

👉 A portable JSON editor with text, tree and list views.

JSONedit lets you inspect and edit JSON documents as text, expandable trees or filtered lists. It requires no installation.

Tools support formatting, CSV conversion, reusable snippets, Lua scripting and schema validation. You can also locate browser configuration files and edit Mozilla MOZLZ4/JSONLZ4 files.

Note: Full Unicode support is unavailable. The jq filtering tool requires a separate jq executable in the application directory.




Features:
• Text, tree and list views.
• Syntax highlighting, code folding and brace matching.
• Compact or indented formatting.
• Node copying, cloning, sorting and reordering.
• Searching and list filtering.
• Duplicate-value detection.
• CSV import and export.
• Reusable snippets.
• Lua scripting and configurable hotkeys.
• JSONPath and JMESPath queries.
• JSON Patch and Merge Patch tools.
• JSON Schema validation.
• NDJSON viewing and export.
• Mozilla MOZLZ4/JSONLZ4 support.
• Browser configuration access.
• External jq filtering.

Supported operating systems:
• Windows; specific versions: Not Found
• Linux through Wine, with limitations

Supported languages:
English.

Changes:
v0.9.45 09-30-26
added File/"Open browser config" menu: lists JSON configuration files of Chromium-based browsers (Vivaldi, Opera, Chrome, Edge, Brave) and Firefox profiles
saving browser configuration file: warning if browser is running (it may overwrite file on exit), warning for Chromium "Secure Preferences" (HMAC-protected values), option to remove "checksum" from Chromium "Bookmarks"
added Tools/"jq filter (using external jq.exe)" window: filtering JSON with jq (https://jqlang.org/) if jq executable (jq.exe, jq-win64.exe, jq-windows-amd64.exe, jq-win32.exe or jq-windows-i386.exe) is placed in application directory; options: compact (-c), raw output (-r), sort keys (-S), slurp (-s); MRU list of filters pre-filled with basic examples
MOZLZ4/JSONLZ4 files are detected also by file header, not only by extension
added option to disable zooming in/out when mouse wheel is used while left mouse button is held in text views
splitted setting for string value scrollbars into separate vertical scrollbar and horizontal scrollbar
opening file that does not exist (e.g. from MRU list or command line) asks whether to create new file instead of silently opening empty document; last file that no longer exists is skipped at startup
file is added to MRU list only after it was opened successfully
FIXED: failed save (e.g. read-only file) was marking document as saved; also file name, title and MRU list are not changed when "Save as" fails
FIXED: paste, Lua AddNodeAsSibling/AddNodeAsChild and loading snippet were overwriting existing node with the same name when tree reuse was enabled
FIXED: name/value preprocessor script error was changing edited text to empty string
FIXED: loading snippet to last child node was leaving previous node in place
FIXED: drag and drop allowed creating duplicated keys (same key, different value)
FIXED: loading/saving empty or damaged MOZLZ4/JSONLZ4 files
FIXED: real numbers entered in array editor or node edit dialog could be saved as invalid JSON (e.g. 1.5e+300.0); full precision is kept when needed (e.g. 0.30000000000000004)
FIXED: "//" comment ending with space/tab (e.g. after editing node or entering comment in edit panel) was swallowing next member or closing bracket when saving - data loss
FIXED: comments attached to array elements were lost or array elements after commented element were possibly lost when saving
FIXED: more robust JSON parsing when reading own settings
FIXED: File/"Open HTTP" was crashing (AV) on first use
FIXED: crash when custom Lua functions (e.g. print, Sleep) were called from coroutine; coroutines can be used in scripts now
FIXED: possible crash when clicking tree navigator panel after navigator was hidden and file was reloaded
FIXED: crash on "Copy" in duplicated values window when no row was selected
FIXED: moving node (drag and drop with Shift) onto itself or its subnode was not prevented
FIXED: array editor was crashing for empty array or array containing only empty objects
FIXED: HTTP client GET parameters were not saved/restored correctly
Relaxed JSON parser: FIXED escape sequences (
,
, \t, \b, \f, \uXXXX) in quoted strings
FIXED: text search ignored "Whole word" option when "Match case" was also selected
about a dozen other minor fixes





Note:
This file has one hit on VirusTotal. We have confirmed this to be a false positive. The file is safe.

Click here to visit the author's website.
Continue below for the main download link.


Downloads Views Developer Last Update Version Size Type Rank
5,825 10,311 Tomasz Ostrowski Oct 05, 2026 - 11:30 0.9.45 1.75MB ZIP 5/5, out of 84 Votes.
File Tags
JSON  JSONedit  editor  portable  tree  text  list  formatting  validation  schema  CSV  Lua  JSONPath  JMESPath  jq  
      
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