unstringify.com
Open the app
free · no account · nothing uploaded

Paste the mess.
Read the structure.

The reverse of stringify. Paste broken JSON, a CSV, or a log file — it reads what your editor won't, fixes what's broken with your say-so, and keeps your text where you put it.

Copied a broken JSON from a chat? It opens right here.
dots on the bad lines, Fix all, undo · 9 s
your phone’s share sheet — no email, no account

unstringify — Paste the mess. Read the structure.

no signup · runs entirely in your browser · ⌘V works anywhere on this page

Your text stays

The tree arrives beside what you pasted, when you ask. Nothing is swapped out from under you.

Fixes with your say-so

Dots on the lines, plain sentences, one button. Your text corrected in place, undo right there.

Nothing leaves your browser

Reading, fixing and comparing run in your tab. Open the network panel and watch it stay empty.
themes

Wears your editor's colors.

The same file, five palettes. It follows your system between light and dark, or wears one of the three most-installed editor themes — matched to the published hex.
order.json
Ink
{
"sku": "BRD-OAK-002",
"qty": 2,
"price": 124.5,
"gift": true,
"tags": ["oak", "wax"]
}
order.json
Paper
{
"sku": "BRD-OAK-002",
"qty": 2,
"price": 124.5,
"gift": true,
"tags": ["oak", "wax"]
}
Auto — follows your system
order.json
One Dark
{
"sku": "BRD-OAK-002",
"qty": 2,
"price": 124.5,
"gift": true,
"tags": ["oak", "wax"]
}
order.json
Dracula
{
"sku": "BRD-OAK-002",
"qty": 2,
"price": 124.5,
"gift": true,
"tags": ["oak", "wax"]
}
order.json
Catppuccin
{
"sku": "BRD-OAK-002",
"qty": 2,
"price": 124.5,
"gift": true,
"tags": ["oak", "wax"]
}
Or pick one — matched to the published hex
VS Code

Or lives in your editor.

The same engine as an extension: named fixes on the lightbulb and in the Problems panel, CSV and logs read as records, Compare by structure in the diff editor, packed values opened in place. Nothing you open is uploaded.

Install in VS CodeWhat it does
unstringify for VS Code
14 days of everything · Free forever after · Pro is a one-time $19 licence
the same tools for every format
JSONJSON5YAMLXMLNDJSONCSVTSVMarkdown tablesraw logsnested data
or start from the job
Fix invalid JSONPython dict to JSONUnstringify JSONNDJSON viewerLog parserCSV to JSONJSON to Markdown tableJSON to TypeScriptJSON to JSON SchemaJSON to Zod schemaJSON to Pydantic modelJSON to Go structJSONPath testerJSON formatter and validatorJSON to NDJSONNDJSON to JSONNDJSON to CSVMarkdown table to CSVCSV to Markdown tableTSV to JSONJSONL validator

Try it on the file that broke your afternoon.

Unstringify something
free · no signup