Browser Data Toolkit
20 specialized tools. 100% local processing. Zero uploads.
CSV & Excel Basics
CSV Merger
Drag in 50 CSV files with mismatched columns and merge them into one unified table.
✂️CSV Splitter
Split a massive CSV into smaller files by row count or by a specific column value.
🧹CSV Deduplicator
Remove duplicate rows based on single or multiple columns with fuzzy matching.
🧼Format Cleaner
Strip invisible characters, fix broken UTF-8 encoding, and trim trailing whitespace.
🔄JSON ↔ CSV Converter
Flatten deeply nested JSON arrays into a clean CSV with dot-notation column names.
E-commerce Tools
Shopify Order Normalizer
Collapse Shopify's multi-line order export into one row per order with aggregated totals.
📦Amazon Settlement Cleaner
Extract a clean summary of net profit per order from Amazon's dense settlement report.
🏪WooCommerce Export Cleaner
Normalize WooCommerce's inconsistent export format, fix dates, and flatten meta fields.
💳Stripe Payout Formatter
Reformat Stripe's raw payout export into a clean ledger suitable for QuickBooks.
🔍Local VLOOKUP (Joiner)
Join two large CSV files on a shared key column instantly without Excel freezing.
Marketing & Paid Media
Apollo Leads Cleaner
Clean exported Apollo.io lead lists by validating emails and removing generic addresses.
📧Klaviyo / Mailchimp Prep
Reformat your customer list to match Klaviyo or Mailchimp's strict import schema.
📊Ads ROAS Pivot
Build a local pivot table from Facebook or Google Ads exports to calculate ROAS.
⚙️Regex Replace
Apply regex patterns across an entire column to extract, replace, or remove text at scale.
🔗UTM Bulk Generator
Bulk generate UTM tracking URLs safely and instantly in your browser without breaking existing parameters.
Privacy & Developer Tools
GDPR Anonymizer
Replace real names, emails, and phone numbers with realistic synthetic data.
🗃️SQL on CSV
Write real SQL queries against your CSV files locally in the browser.
📐Parquet Converter
Convert between Parquet and CSV formats entirely within your browser.
📝Markdown Table Generator
Convert CSV data into perfectly aligned Markdown tables for GitHub or Notion.
✅CSV Schema Validator
Define rules for each column and validate an entire dataset in seconds.