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48 tools

7 categories

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output.json

{
  "data": [
    {
      "name": "Alice",
      "role": "Developer",
      "active": true
    }
  ]
}

Conversion Complete

CSV to JSON • 1,234 rows

Conversion

Convert CSV to and from other formats

13 tools

CSV to JSON

Convert CSV files to JSON format instantly

JSON to CSV

Convert JSON data to CSV format

CSV to Excel

Export CSV as Excel (.xlsx) with formatting

Excel to CSV

Extract sheets from Excel files to CSV

CSV to SQL

Generate INSERT/CREATE TABLE statements

SQL to CSV

Parse SQL INSERT statements to CSV

CSV to XML

Convert CSV to structured XML

XML to CSV

Flatten XML to tabular CSV

CSV to HTML Table

Generate styled HTML tables from CSV

CSV to Markdown

Convert CSV to Markdown table format

CSV to YAML

Convert CSV to YAML format

CSV to TSV

Convert comma-separated to tab-separated

TSV to CSV

Convert tab-separated to comma-separated

Manipulation

Merge, split, filter, and transform data

12 tools

Merge CSV

Combine multiple CSV files vertically

Split CSV

Split by row count or column value

Join CSV

SQL-style JOIN on key columns

Filter Rows

Filter by conditions, equals, contains, regex

Sort CSV

Sort by one or multiple columns

Remove Duplicates

Deduplicate based on selected columns

Select Columns

Extract specific columns

Reorder Columns

Drag-and-drop column reordering

Rename Columns

Batch rename headers

Add Column

Add calculated or static columns

Transpose

Swap rows and columns

Pivot Table

Create pivot tables from CSV

Cleaning

Validate, repair, and clean your data

8 tools

Validate CSV

Check RFC 4180 compliance

Repair CSV

Fix common issues with quotes and delimiters

Trim Whitespace

Remove leading/trailing spaces

Find & Replace

Bulk find/replace with regex support

Remove Empty Rows

Delete rows with all empty values

Fill Empty Cells

Fill blanks with default value

Standardize Dates

Convert dates to consistent format

Fuzzy Dedupe

Smart deduplication with fuzzy matching

Analysis

Analyze, profile, and query your data

5 tools

CSV Statistics

Column stats: mean, median, std, etc.

Data Profiler

Full data quality report

Query CSV (SQL)

Run SQL queries on CSV data

Compare CSV

Diff two CSV files, highlight changes

Count Values

Frequency distribution per column

Visualization

View and visualize your data

3 tools

CSV to Chart

Generate bar, line, and pie charts

CSV Viewer

Interactive data grid viewer

CSV to Heatmap

Visualize correlation matrix

Encoding

Handle file encoding and delimiters

4 tools

Change Encoding

Convert UTF-8, Latin-1, etc.

Add/Remove BOM

Handle UTF-8 BOM for Excel compatibility

Change Delimiter

Convert comma, semicolon, tab, pipe

Detect Encoding

Auto-detect file encoding

Generation

Generate mock data and schemas

3 tools

Generate Mock Data

Create fake data: names, emails, etc.

Generate Schema

Infer and output table schema

Empty CSV Template

Create CSV with custom headers

Why SmallCSV?

Built for developers, analysts, and anyone who works with data

100% Private

All processing happens in your browser. Your data never leaves your device or touches our servers.

Blazing Fast

Process large files instantly with optimized client-side algorithms. No upload delays.

Open Source

Transparent, auditable code. No hidden tracking, no data collection, no surprises.

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