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Conversion Plan: Non-Registered User

File Size Limit: 10 MB

Conversions: 5 / Daily (up to 50 / Monthly)

Daily Conversions0 / 5
Monthly Conversions0 / 50
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  • ai
  • AI: Convert PDF to JSON
  • AI: Convert PDF to Markdown
  • AI: Convert PNG to JSON
  • AI: Convert JPG to JSON
  • AI: Convert PDF to CSV
  • AI: Convert PDF to Excel
  • AI: Translate SRT
  • AI: Text to Speech
  • AI: DOCX to Speech
  • AI: PDF to Speech
  • AI: Markdown to Speech
  • AI: MP3 to Text
  • AI: WAV to Text
  • AI: FLAC to Text
  • json
  • AI: Convert PDF to JSON
  • AI: Convert PNG to JSON
  • AI: Convert JPG to JSON
  • Convert XML to JSON
  • JSON Formatter
  • JSON Validator
  • Convert JSON to XML
  • Convert JSON to CSV
  • Convert JSON to Excel
  • Convert Excel to JSON
  • Convert CSV to JSON
  • Convert JSON to YAML
  • Convert JSON objects to CSV
  • Convert JSON objects to Excel
  • Convert YAML to JSON
  • Convert JSON to Parquet
  • Convert Parquet to JSON
  • xml
  • Convert XML to JSON
  • Convert JSON to XML
  • Convert CSV to XML
  • Convert Excel to XML
  • Convert XML to CSV
  • Convert XML to Excel
  • Fix XML Escaping
  • Convert Excel XML to Excel XLSX
  • XML/XSD Validator
  • Convert XML to Parquet
  • pdf
  • AI: Convert PDF to JSON
  • AI: Convert PDF to Markdown
  • AI: Convert PDF to CSV
  • AI: Convert PDF to Excel
  • AI: PDF to Speech
  • Convert Word to PDF
  • Convert PowerPoint to PDF
  • Convert OXPS to PDF
  • Convert JPG to PDF
  • Convert PNG to PDF
  • Convert Excel to PDF
  • Convert OpenOffice Calc ODS to PDF
  • Convert PDF to CSV
  • Convert PDF to Excel
  • Convert PDF to Word
  • Convert PDF to JPG
  • Convert PDF to PNG
  • Convert PDF to TIFF
  • Convert PDF to SVG
  • Convert PDF to HTML
  • Convert PDF to Text
  • Convert Excel to XPS
  • Convert Markdown to PDF
  • Convert HTML to PDF
  • office
  • AI: Convert PDF to CSV
  • AI: Convert PDF to Excel
  • AI: DOCX to Speech
  • Convert Word to PDF
  • Convert PowerPoint to PDF
  • Convert OXPS to PDF
  • Convert Excel to PDF
  • Convert OpenOffice Calc ODS to PDF
  • Convert PDF to CSV
  • Convert PDF to Excel
  • Convert PDF to Word
  • Convert Word to HTML
  • Convert PowerPoint to HTML
  • Convert Word to Text
  • Convert PowerPoint to Text
  • Convert Excel to XPS
  • Convert Excel to HTML
  • Convert Excel to CSV
  • Convert Excel to OpenOffice Calc ODS
  • Convert OpenOffice Calc ODS to CSV
  • Convert OpenOffice Calc ODS to Excel
  • Convert JSON to Excel
  • Convert Excel to JSON
  • Convert JSON objects to Excel
  • Convert BSON to Excel
  • Convert Excel to XML
  • Convert XML to CSV
  • Convert XML to Excel
  • Convert Excel XML to Excel XLSX
  • Convert CSV to Excel
  • Convert Parquet to Excel
  • Convert Excel to Parquet
  • Convert JSONL to Excel
  • Convert Excel to JSONL
  • Convert SRT to Excel
  • Convert SRT to XLSX
  • Convert SRT to XLS
  • Convert Excel to SRT
  • Convert XLSX to SRT
  • Convert XLS to SRT
  • Convert ASS to Excel
  • Convert Excel to ASS
  • Convert Markdown to Word
  • Convert Word to Markdown
  • Convert HTML to Word
  • csv
  • AI: Convert PDF to CSV
  • Convert PDF to CSV
  • Convert Excel to CSV
  • Convert OpenOffice Calc ODS to CSV
  • Convert JSON to CSV
  • Convert CSV to JSON
  • Convert JSON objects to CSV
  • Convert BSON to CSV
  • Convert CSV to XML
  • Convert XML to CSV
  • Convert CSV to Excel
  • Convert CSV to Parquet
  • Convert Parquet to CSV
  • Convert CSV to JSONL
  • Convert JSONL to CSV
  • Convert SRT to CSV
  • Convert CSV to SRT
  • Convert HTML Table to CSV
  • parquet
  • Convert CSV to Parquet
  • Convert Parquet to CSV
  • Convert JSON to Parquet
  • Convert Parquet to JSON
  • Convert JSONL to Parquet
  • Convert Parquet to JSONL
  • Convert Parquet to Excel
  • Convert XML to Parquet
  • Convert Excel to Parquet
  • jsonl
  • Convert JSON objects to CSV
  • Convert JSON objects to Excel
  • Convert JSONL to Parquet
  • Convert Parquet to JSONL
  • Convert CSV to JSONL
  • Convert JSONL to CSV
  • Convert JSONL to Excel
  • Convert Excel to JSONL
  • ocr
  • OCR: Convert PNG to Text
  • OCR: Convert JPG to Text
  • OCR: Convert PNG to PDF
  • OCR: Convert JPG to PDF
  • OCR: Convert PDF to Text
  • OCR: Convert PDF Image to PDF Text
  • markdown
  • AI: Convert PDF to Markdown
  • AI: Markdown to Speech
  • Convert Markdown to PDF
  • Convert Markdown to HTML
  • Convert Markdown to ePUB
  • Convert Markdown to Word
  • Convert Markdown to LaTeX
  • Convert Markdown to Text
  • Convert HTML to Markdown
  • Convert Word to Markdown
  • html
  • Convert PDF to HTML
  • Convert Word to HTML
  • Convert PowerPoint to HTML
  • Convert Excel to HTML
  • Convert Markdown to HTML
  • Convert HTML to Markdown
  • Convert HTML to PDF
  • Convert Website to JPG
  • Convert HTML to JPG
  • Convert Website to PNG
  • Convert HTML to PNG
  • Convert HTML to Word
  • Convert HTML Table to CSV
  • subtitles
  • AI: Translate SRT
  • Convert SRT to CSV
  • Convert SRT to Excel
  • Convert SRT to XLSX
  • Convert SRT to XLS
  • Convert SRT to Text
  • Convert SRT to VTT
  • Convert VTT to Text
  • Convert VTT to SRT
  • Convert CSV to SRT
  • Convert Excel to SRT
  • Convert XLSX to SRT
  • Convert XLS to SRT
  • Convert ASS to SRT
  • Convert ASS to VTT
  • Convert ASS to Text
  • Convert ASS to Excel
  • Convert SRT to ASS
  • Convert VTT to ASS
  • Convert Excel to ASS
  • text
  • AI: Text to Speech
  • AI: MP3 to Text
  • AI: WAV to Text
  • AI: FLAC to Text
  • Convert PDF to Text
  • Convert Word to Text
  • Convert PowerPoint to Text
  • Convert SRT to Text
  • Convert VTT to Text
  • Convert ASS to Text
  • Convert Markdown to Text
  • format
  • JSON Formatter
  • JSON Validator
  • XML/XSD Validator
  • image
  • AI: Convert PNG to JSON
  • AI: Convert JPG to JSON
  • Convert AI to SVG
  • Convert JPG to PDF
  • Convert PNG to PDF
  • Convert PDF to JPG
  • Convert PDF to PNG
  • Convert PDF to TIFF
  • Convert PDF to SVG
  • Convert PNG to SVG
  • Convert PNG to AVIF
  • Convert JPG to AVIF
  • Convert WebP to AVIF
  • Convert AVIF to PNG
  • Convert AVIF to JPEG
  • Convert AVIF to WebP
  • Convert PNG to WebP
  • Convert JPG to WebP
  • Convert TIFF to WebP
  • Convert GIF to WebP
  • Convert WebP to PNG
  • Convert WebP to JPEG
  • Convert WebP to TIFF
  • Convert WebP to BMP
  • Convert WebP to YUV
  • Convert WebP to PAM
  • Convert WebP to PGM
  • Convert WebP to PPM
  • Convert PNG to JPG
  • Convert PNG to PGM
  • Convert PNG to PPM
  • Convert JPG to PNG
  • Convert JPEG to PGM
  • Convert JPEG to PPM
  • Convert HEIC to PNG
  • Convert HEIC to JPG
  • Convert HEIC to WebP
  • Convert HEIC to AVIF
  • Convert HEIC to TIFF
  • Convert HEIC to BMP
  • Convert HEIC to JXL
  • Convert JPG to HEIC
  • Convert PNG to HEIC
  • Convert WebP to HEIC
  • Convert AVIF to HEIC
  • Convert TIFF to HEIC
  • Convert BMP to HEIC
  • Convert JPG to JXL
  • Convert PNG to JXL
  • Convert WebP to JXL
  • Convert AVIF to JXL
  • Convert TIFF to JXL
  • Convert BMP to JXL
  • Convert GIF to JXL
  • Convert JXL to JPG
  • Convert JXL to PNG
  • Convert JXL to WebP
  • Convert JXL to AVIF
  • Convert JXL to TIFF
  • Convert JXL to BMP
  • Convert JXL to HEIC
  • Convert JXL to GIF
  • Convert SVG to PNG
  • Convert SVG to JPG
  • Remove EXIF Data
  • Convert Website to JPG
  • Convert HTML to JPG
  • Convert Website to PNG
  • Convert HTML to PNG
  • video
  • Convert MOV to MP4
  • Convert MKV to MP4
  • Convert AVI to MP4
  • Convert MP4 to MP3
  • audio
  • AI: Text to Speech
  • AI: DOCX to Speech
  • AI: PDF to Speech
  • AI: Markdown to Speech
  • AI: MP3 to Text
  • AI: WAV to Text
  • AI: FLAC to Text
  • Convert MP4 to MP3
  • Convert WAV to MP3
  • Convert FLAC to MP3
  • Convert MP3 to WAV
  • Convert FLAC to WAV
  • Convert WAV to FLAC
  • ebook
  • Convert ePUB to MOBI
  • Convert ePUB to AZW
  • Convert MOBI to ePUB
  • Convert MOBI to AZW
  • Convert AZW to ePUB
  • Convert AZW to MOBI
  • Convert ePUB to PDF
  • Convert MOBI to PDF
  • Convert AZW to PDF
  • Convert AZW3 to PDF
  • Convert FB2 to PDF
  • Convert FBZ to PDF
  • Convert PDF to ePUB
  • Convert PDF to MOBI
  • Convert PDF to AZW
  • Convert PDF to AZW3
  • Convert PDF to FB2
  • Convert PDF to FBZ
  • Convert Markdown to ePUB
  • Need a different conversion? Contact us!

Convert CSV to Parquet

Online Converter: Convert CSV file to Apache Parquet columnar format

Set options and click 'Run Conversion' button

1
Drag and Drop your file or click "Browse" to select it.
Max. size 10 MB
For batch conversion upload archive (zip, rar, 7z, xz).
2
Conversion Configuration
3
CSV file delimiter
4
Start Conversion
Rating
0.0(0 votes)
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Convert CSV files to Apache Parquet format for optimized storage and faster analytics. Parquet's columnar storage typically reduces file size by 10x while enabling dramatically faster query performance in tools like Apache Spark, AWS Athena, and DuckDB.

If you're working with large datasets, preparing data for a data lake, or optimizing analytics pipelines, converting CSV to Parquet is one of the highest-impact improvements you can make.

Why Convert CSV to Parquet?

  • 10x Smaller Files:Parquet's columnar compression dramatically reduces storage requirements compared to CSV.
  • Faster Queries: Columnar storage enables query engines to read only the columns needed, skipping irrelevant data entirely.
  • Schema Preservation: Unlike CSV, Parquet preserves data types (integers, floats, dates, strings) eliminating parsing overhead.
  • Cloud Cost Savings: Smaller files mean lower S3/GCS storage costs and faster data transfer times.
  • Analytics Ready: Parquet is the native format for Spark, Athena, BigQuery, Snowflake, and modern analytics platforms.

Common Use Cases

  • Data Lake Ingestion: Convert CSV exports to Parquet before uploading to S3, GCS, or Azure Blob for efficient querying.
  • ETL Pipeline Optimization: Replace CSV intermediates with Parquet for faster pipeline execution and lower costs.
  • Analytics Preparation: Prepare data for Apache Spark, Pandas, or DuckDB analysis with optimized file format.
  • Archival Storage: Archive large CSV datasets in compressed Parquet format to reduce storage costs.

About Apache Parquet

Apache Parquet is a columnar storage format designed for efficient data storage and retrieval. It's the industry standard for big data analytics and is supported by virtually every modern data platform.

Platform Support

  • Apache Spark, PySpark
  • AWS Athena, Redshift Spectrum
  • Google BigQuery
  • Snowflake, Databricks
  • Python Pandas (via pyarrow)
  • DuckDB

Format Resources

  • Apache Parquet - Official project website

Related Converters

  • Parquet to CSV - Convert back to CSV format
  • JSON to Parquet - Convert JSON to columnar format
  • Excel to Parquet - Convert spreadsheets to Parquet

Frequently Asked Questions

How much smaller will my Parquet file be?

Parquet files are typically 5-10x smaller than equivalent CSV files, depending on data content. Repetitive data and numeric columns compress particularly well.

Will my column types be preserved?

The converter infers data types from your CSV content (numbers, dates, strings) and stores them with proper types in the Parquet schema. This eliminates type parsing when reading the file.

Can I convert large CSV files?

Yes. Large CSV files are handled efficiently, and the resulting Parquet file will be significantly smaller due to columnar compression.