Optimizing Large CSV Conversions

Our tool is designed for efficiency, but browser memory limits are still a factor when dealing with massive datasets.

RAM and Browser Limits

Most modern browsers allow a single tab to use between 512MB and 2GB of RAM. A 50MB CSV can easily expand to 300MB of JSON in memory due to the overhead of object keys and string allocations.

Pro Tips for Large Files:

• Minify Output: Set indentation to 0. This reduces the string length by up to 40%.
• Disable Key Sorting: Sorting keys requires an extra pass over Every single object in the array, which can double the processing time.
• Clean Browser Profile: If you're struggling, try an Incognito tab to ensure no extensions are interfering with memory.

The Streaming Advantage

We use chunked reading to prevent the browser UI from freezing during the file read phase. However, the final JSON string generation is still a 'heavy' operation.