26 tools100% client-sideFree forever
Free Online Spreadsheet Tools
Browser-based tools for working with spreadsheets. Your files never leave your browser.
Every tool runs entirely in your browser — no uploads, no servers, no sign-ups. Paste your data, get results, and move on. Built for Shopify merchants who spend half their day wrangling spreadsheets: validating product CSVs before import, converting between formats, cleaning up descriptions, and generating SEO markup. Whether you need to split a 10,000-row export, deduplicate SKUs, or bulk-generate alt text, there is a tool here that does exactly that — fast and free.
Shopify
Shopify CSV Validator
Validate product CSVs before importing to Shopify.
CSV to Shopify Format
Map columns from any CSV to Shopify's product import format.
Shopify CSV Template
Download pre-filled Shopify product CSV templates by product type.
Shopify Redirect CSV
Generate Shopify redirect CSVs from old-to-new URL pairs.
Shopify CSV Diff
Compare two Shopify product CSV exports and see what changed.
Data Conversion
Spreadsheet to Markdown
Convert CSV and Excel files to clean markdown tables.
Excel to JSON
Convert spreadsheets to structured JSON data.
JSON to CSV
Convert JSON data to CSV. Nested objects are flattened automatically.
Excel to CSV
Convert Excel files to UTF-8 CSV. Prevents encoding errors on Shopify import.
TSV to CSV
Convert tab-separated data to CSV. Useful for Google Merchant Center exports.
CSV to HTML Table
Convert CSV data to a formatted HTML table with live preview.
CSV Utilities
Excel Analyzer
Analyze spreadsheets for performance issues and structural improvements.
Column Extractor
Extract and reorder columns from CSV and Excel files.
CSV Merger
Combine multiple CSV files into one.
CSV Splitter
Split large CSV files into smaller chunks.
CSV Deduplicator
Remove duplicate rows from CSV files by any column.
SEO & Marketing
Bulk SKU Generator
Generate structured SKUs from product attributes with CSV export.
Image Alt Text Generator
Generate SEO-optimized alt text for product images in bulk.
Product Schema Generator
Generate JSON-LD Product schema markup from a CSV file.
SERP Preview
Preview how your page looks in Google search results.
OG Tag Generator
Generate Open Graph and Twitter Card meta tags for any page.
Text Utilities
Case Converter
Convert text between Title Case, UPPER CASE, lower case, and Sentence case.
URL Slug Generator
Convert product titles to clean URL slugs and Shopify handles.
Bulk Find & Replace
Find and replace text in bulk across product titles, descriptions, or SKUs.
Word & Character Counter
Count words and characters with Shopify field limit presets.
HTML to Plain Text
Strip HTML tags from Shopify product descriptions to get clean plain text.
Beyond free tools
Automatic Shopify → Sheets sync.
Orders, fulfillments, customers — always up to date in your spreadsheet.
Try ShopSheets free