ParseWiz
Fix, preview, and convert JSON/CSV/Excel instantly
What it does
ParseWiz is a free online tool to convert between JSON, CSV, and Excel files. Unlike other converters, it doesn't just fail on broken files — it shows you exactly where the error is and lets you fix it inline. Upload your file, preview the data in a real table, and download in the format you need. Handles complex nested JSON with smart export options (split tables or flat file). No signup, no data stored.
Does a similar job
all alternatives →
- CLConvert Large CSV/XLSX to JSON or XML in Browser2025 · csvforge.com · ▲41
Hello HN, I'm excited to share a project I've been working on: A simple, fast way to process huge CSV and XLSX files directly in your browser and export them as clean JSON or XML Here's a few things that makes this converter different: - runs in the browser - all parsing and conversion is client side can handle data any size data - automatically detects delimiters, encodings, and data types as it parses - Live preview with column renaming, search/replace, and data cleanup - Export to JSON or XML — clean, structured output that can be used for API or Databases backstory: I built this…
- ECExcelJSON – Convert JSON To/from CSV, TSV Easily2017 · exceljson.com · ▲50
JSON to Excel ConverterMar 2026 · jsontoexcel.cloud · ▲5Convert any JSON to Excel in second 100% private, no uploads
More dev tools this month
the category →
OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 2d ago · opentrailpaper.com
Open-source GTM skills for technical founders
Dev tools · 30d ago · gtmcofounder.com
