Markdown to Excel

Free Online Converter

JSON to Excel Converter

Paste JSON, download an .xlsx file. No server uploads, no sign-ups. The conversion happens in your browser using SheetJS.

100% Free
Privacy-First
Instant Conversion

JSON Input

Preview & Download

Preview will appear here

Paste JSON data on the left to see preview

The Bridge Between APIs and Spreadsheets

From API Response to Spreadsheet

Here's the situation: your API returns JSON, but the person who needs the data lives in Excel. They don't want to learn jq or write a Python script. This tool solves that. Paste the JSON response, click download, hand them the .xlsx file. Done. If you need to go back from Excel to JSON later, there's the Excel to JSON converter.

No Server, No Risk

The SheetJS library generates the Excel file entirely in your browser. Your JSON never gets uploaded anywhere. This matters when you're working with production data, internal APIs, or anything with customer information. I didn't want to build a tool I wouldn't trust with my own data.

Handles Both JSON Formats

Whether your JSON is an array of objects (keys become columns) or an array of arrays (first row becomes headers), the converter auto-detects and handles it. If you want Markdown tables instead of Excel, try JSON to Markdown. Or start from Markdown with Markdown to Excel.

Where People Use This

Sharing API Data with Non-Developers

Your PM asks "can you pull the user list from the API?" You hit the endpoint, get JSON back. But they want it in Excel so they can filter and sort. This tool turns that 2-minute API call into an Excel file they can actually work with.

Quick Database Exports

MongoDB dumps, Elasticsearch query results, or any NoSQL output that comes as JSON -- paste it here and get Excel. No need to write a script or set up a reporting pipeline for a one-off data pull.

Reviewing Data Before Migration

Moving data between systems? Export it as JSON, convert to Excel here, then eyeball the rows in a spreadsheet. Way easier to spot bad data, missing fields, or formatting issues in Excel than scrolling through raw JSON.

Editing Config in a Spreadsheet

Have JSON config data (feature flags, translations, product catalog) that a non-dev needs to edit? Convert to Excel, let them make changes in their comfort zone, then use our Excel to JSON converter to bring it back.

JSON vs Excel: Different Tools for Different Jobs

JSON is great for moving data between applications. Excel is great for humans looking at data. Most of the time you're converting because a developer has JSON and a non-developer needs a spreadsheet. That's totally fine -- it's probably the most common use case for this tool.

When JSON Makes Sense

  • •Sending data between apps and APIs
  • •Storing nested or hierarchical data
  • •Config files, test fixtures, seed data
  • •Anything a script needs to read

When Excel Makes Sense

  • •Sorting, filtering, and pivot tables
  • •Sharing data with non-technical people
  • •Building charts and reports
  • •Emailing data to stakeholders

Three Steps, Thirty Seconds

📝
1

Paste Your JSON

Drop your JSON array into the input box. Or click Sample to try it with example data first. Works with both [{...}] and [[...]] formats.

👁️
2

Check the Preview

A table preview pops up on the right showing your headers and the first few rows. Make sure the columns look right before downloading.

📥
3

Download the .xlsx File

Hit Download Excel. The file gets built in your browser by SheetJS and saved to your downloads folder. Open it in Excel, Google Sheets, or whatever you prefer.

Related Tools

Excel to JSON

Go the other direction -- upload Excel and get JSON

JSON to Markdown

Turn JSON into Markdown tables for your docs

Markdown to Excel

Convert Markdown tables to downloadable spreadsheets

CSV to Markdown

Comma-separated data to Markdown tables

TSV to Excel

Tab-separated data straight to spreadsheets

Excel to Markdown

Turn your spreadsheet into a Markdown table

Frequently Asked Questions

Paste a JSON array, click download, get an .xlsx file. Under the hood, it uses the SheetJS library to build the Excel file right in your browser. Object keys become column headers, and each object in the array becomes a row. It also handles arrays of arrays if that's what you have -- the first array becomes the header row.
Two formats: arrays of objects and arrays of arrays. The first one looks like [{"name":"Alice","age":30}] -- that's what most APIs return. The second looks like [["Name","Age"],["Alice",30]] -- more of a spreadsheet-style layout. The tool figures out which one you pasted automatically.
Paste your JSON into the input box (or hit Sample to try it out). A preview table shows up on the right so you can check the data looks right. Then click Download Excel. That's it -- you'll get a .xlsx file on your machine. The whole conversion happens locally, no upload needed.
One sheet called Sheet1 with your data. Row 1 has the headers (from your JSON keys or the first array), and the rest are data rows. The file opens in Excel, Google Sheets, LibreOffice Calc, Numbers -- any spreadsheet app that reads .xlsx.
Completely. The SheetJS library runs in your browser and creates the Excel file on your device. Your JSON doesn't get sent to any server. I use this myself with production API data that has customer records in it, so privacy was non-negotiable when building this.
Yes. The preview only shows the first 8 rows to keep things snappy, but the actual Excel file includes every row. I've tested it with datasets in the thousands-of-rows range and it converts in under a second. For truly massive files (100K+ rows), it depends on your browser and available memory.
Depends who's receiving the data. If it's someone who works in Excel or Google Sheets and wants to sort, filter, and make charts, go with Excel. If you need to pipe the data into a script, import it into a database, or just want a lightweight text format, CSV is better. We have a Markdown to CSV converter if you need that.
Flat JSON works best -- objects with simple string, number, or boolean values. If a value is itself an object or array, it'll show up as a stringified JSON blob in the Excel cell. Not pretty, but at least you won't lose the data. For complex nested structures, flatten them before pasting.
Free. No account, no limits. If you need the reverse, we've got Excel to JSON. And there's also JSON to Markdown, Markdown to Excel, and CSV to Markdown.