CSV ToolsLocal
CSV to JSON
Convert CSV rows into structured JSON arrays.
CSV Tools
CSV tools for conversion, cleanup, and export
Use these tools to move spreadsheet-style data into cleaner formats, normalize messy files, and export fresh copies entirely in the browser.
What you can do with these CSV tools
They focus on practical import and export work instead of spreadsheet editing.
- Convert CSV rows into JSON arrays.
- Turn JSON objects into export-ready CSV files.
- Trim, deduplicate, and normalize rough CSV inputs before download.
Browse csv tools
Most-used tools first.
CSV ToolsLocal
JSON to CSV
Convert JSON into CSV with optional flattening for nested fields.
CSV ToolsLocal
CSV Cleaner
Clean messy CSV files by trimming, normalizing, and deduplicating rows.
Choose the right CSV page
The CSV section works best when you start with the task shape, not just the file type.
- Use CSV Cleaner when the source export is messy and will break the next step.
- Use CSV to JSON when rows need to move into code, fixtures, or APIs.
- Use JSON to CSV when structured data needs to become a spreadsheet-friendly export.
Common CSV workflows
Most users either clean first and convert second, or export JSON for business review.
- Normalize headers and trim cells before importing into another system.
- Convert spreadsheet exports into JSON arrays for scripts and apps.
- Flatten JSON objects into CSV for reviews, uploads, or reporting.
Guides and comparison pages
These pages cover broader format, sizing, and workflow questions before users drop into a specific tool.