Home Developer CSV to JSON Developer · free online tool CSV to JSON. Convert CSV rows into JSON objects.
A little context. Uses the first row as column names. Quoted commas, escaped quotes and line breaks in quoted cells are supported. Values remain strings to preserve leading zeros.
Try an example name,score / Alex,10 → [{"name":"Alex","score":"10"}]
How to use this tool Enter csv with header in the workspace above. Select Run tool to process your input. Invalid values produce a message next to the form. Copy the result or download it as a file. Reset example restores the original input. Good to know. How does CSV to JSON work? Uses the first row as column names. Quoted commas, escaped quotes and line breaks in quoted cells are supported. Values remain strings to preserve leading zeros.
Is my input uploaded? No. Tool inputs are processed locally in a browser worker. Copying and downloading happen on your device. Reloading the page clears your inputs; only your color theme is saved.
Are there limits? Text inputs are limited to 500,000 characters and processing to eight seconds. Numeric fields show their permitted range. Extremely large results are rejected. Split larger inputs into smaller parts.