CSV Preview & Quick Edit

Tracking since Apr 14, 2026.

Changelog

• May 23, 2026
  short_description

  Open CSV files as interactive tables. Sort, filter, edit cells, and export — all in your browser.

  Clean messy CSVs in Chrome: find/replace, dedupe, fix emails, edit cells, export to CSV, TSV, JSON, XLSX, Markdown. Local.

• May 23, 2026
  description

  🎯 WHY CSV PREVIEW & QUICK EDIT
  
  Every day, millions of CSV files get downloaded from analytics dashboards, CRMs, bank portals, and data exports. Your browser shows them as a wall of raw comma-separated text that is impossible to read. Opening them properly means launching Excel, importing into Google Sheets, or waiting for a heavyweight application to start.
  
  CSV Preview & Quick Edit changes this entirely. It turns your browser into a lightweight, instant CSV viewer and editor. No uploads, no sign-ins, no waiting. Open the extension, pick your file, and your data appears as a clean, sortable, editable table in under a second.
  
  🚀 HOW IT WORKS
  
  ▸ Open any CSV file through the extension popup or navigate to a CSV URL — the extension automatically detects it and offers to render it as an interactive table.
  
  ▸ Columns are identified, headers are extracted, and delimiters are auto-detected. Commas, semicolons, tabs, and pipes all work out of the box.
  
  ▸ Click any column header to sort ascending or descending. Use the search bar to filter across all rows instantly.
  
  ▸ Double-click any cell to edit its value inline. Tab to the next cell, Enter to confirm, Escape to cancel. Modified cells are tracked so you know exactly what changed.
  
  ▸ When you are done, export the result as a clean CSV file ready for upload or further processing.
  
  👥 PERFECT FOR
  
  📊 Data analysts doing quick sanity checks on datasets before importing them into larger tools
  
  💻 Developers inspecting API response dumps, database exports, or log files in CSV format
  
  📈 Marketers reviewing audience exports from ad platforms, email tools, or analytics dashboards
  
  💰 Accountants and finance teams checking transaction exports before running imports
  
  📦 Operations teams editing supplier lists, inventory files, or shipping manifests
  
  🎓 Students and researchers working with research data, survey results, or class grade exports
  
  ✨ KEY FEATURES
  
  ✅ Instant CSV rendering — opens CSV files as a formatted, readable table directly in your browser
  ✅ Auto-detect delimiters — commas, semicolons, tabs, and pipes recognized automatically
  ✅ Sortable columns — click any column header to sort the entire table ascending or descending
  ✅ Inline cell editing — double-click any cell to edit its value without leaving the browser
  ✅ Filter and search — type to filter rows dynamically and find specific records instantly
  ✅ Row selection — select individual rows or bulk-select for copy or delete operations
  ✅ CSV export — download the current table as a clean CSV file after edits
  ✅ Clipboard copy — copy selected rows or the entire table to clipboard as CSV
  ✅ Column resize — drag column borders to adjust widths for comfortable viewing
  ✅ Pagination — smooth page-by-page navigation for large files
  ✅ 100% local processing — your data never leaves your browser, guaranteed
  
  📖 HOW TO USE
  
  → Click the CSV Preview & Quick Edit icon in your toolbar
  → Click "Open CSV File" and select any .csv, .tsv, or .txt file from your computer
  → Your file opens as an interactive table in a new tab
  → Sort, filter, edit, and export as needed
  → Navigate to any CSV URL and the extension auto-detects it
  
  💡 PRO TIPS
  
  💡 Use Tab while editing a cell to quickly move to the next column
  💡 Click the column header twice to reverse the sort direction
  💡 Use the search bar for instant full-text filtering across thousands of rows
  💡 Select multiple rows with checkboxes, then copy or delete in bulk
  💡 The extension remembers your last 20 opened files for quick re-access
  
  ❓ FREQUENTLY ASKED QUESTIONS
  
  Q: Does it work with large CSV files?
  A: Yes. The free plan handles files up to 5,000 rows smoothly. Pro unlocks unlimited rows with optimized rendering for files with tens of thousands of rows.
  
  Q: Can I edit multiple cells before exporting?
  A: Yes. Edit as many cells as you need. All changes are tracked and included when you export.
  
  Q: Does it support delimiters other than commas?
  A: Yes. The extension auto-detects commas, semicolons, tabs, and pipe characters. You can also manually select the delimiter in the popup.
  
  Q: Do I need to upload my file anywhere?
  A: No. All processing happens locally in your browser. Nothing is sent to any server. Your data stays completely private.
  
  Q: Does it work with local files from my desktop?
  A: Yes. Open files through the popup file picker or drag a CSV into Chrome — the extension handles both.
  
  Q: Can I use it without creating an account?
  A: Yes. No account, no sign-in, no registration required. Install and use immediately.
  
  ⚡ TECHNICAL DETAILS
  
  • Built with modern web technologies (TypeScript, Vite) for fast load times
  • Manifest V3 compliant — follows the latest Chrome extension standards
  • Minimal permissions: only activeTab, storage, and alarms
  • Content Security Policy enforced — no inline scripts or remote code
  • Works offline after installation
  
  🏆 WHY CHOOSE CSV PREVIEW & QUICK EDIT
  
  ✓ Zero-friction workflow — no app switching, no file uploads, no waiting
  ✓ Privacy-first design — your CSV data never touches any server
  ✓ Lightweight at under 200KB — installs in seconds, uses minimal resources
  ✓ Auto-detection — opens CSV files from URLs automatically
  ✓ Free tier is generous — 5,000 rows covers most everyday use cases
  ✓ Pro is affordable — unlock unlimited rows for power users
  
  🎬 GET STARTED
  
  ★ Install CSV Preview & Quick Edit from the Chrome Web Store
  ★ Pin the extension to your toolbar for quick access
  ★ Open your first CSV file and see the difference instantly
  
  ⭐ RATE US
  
  If CSV Preview & Quick Edit saves you time, we would love a 5-star review. Your feedback helps us improve and helps others discover the extension. Found a bug or have a feature request? Reach out to us first — we respond to every message.
  
  📧 SUPPORT
  
  For help, bug reports, or feature requests, contact us at [email protected]. You can also visit https://peakproductivity.online for more tools and resources.

  WHY CSV PREVIEW & QUICK EDIT
  
  CSV files arrive messy. Customer exports have duplicate rows. Sign-up dumps have invalid emails. Payment reports have blank cells. Database extracts mix dates with text. Most people open a spreadsheet app, run a half-dozen manual fixes, and re-export. CSV Preview & Quick Edit does that cleanup in your browser, in seconds, without uploading the file anywhere.
  
  Drop a CSV or TSV. Search across columns. Trim whitespace. Remove duplicate rows. Find and replace with regex. Spot blank cells, malformed rows, invalid emails, invalid URLs, and unparseable dates in one glance. Export the cleaned file as CSV, TSV, JSON, XLSX, or Markdown.
  
  HOW IT WORKS
  
  - Click the CSV Preview & Quick Edit icon in your toolbar.
  - Choose a .csv, .tsv, or .txt file from your computer, or open a .csv/.tsv URL.
  - The extension parses the file locally in your browser with a streaming Web Worker.
  - Filter, sort, edit cells, find and replace, dedupe, and clean.
  - Export the result as CSV, TSV, JSON, XLSX, or Markdown.
  
  KEY FEATURES
  
  - Find and replace across the whole file or a single column, with regex and case-sensitive options, and a preview before applying.
  - Remove duplicate rows by full-row match.
  - Trim leading and trailing whitespace from every cell.
  - Remove fully empty rows.
  - Lowercase, uppercase, or title-case entire columns.
  - Split a column by a custom delimiter, or merge a column with the next one.
  - Data quality audit: blank cells, empty rows, duplicates, malformed rows, invalid emails, invalid URLs, unparseable dates.
  - Column filters with conditions: contains, equals, starts with, ends with, empty, not empty, greater than, less than, regex.
  - Global search across every visible cell.
  - Inline edit: double-click any cell, type, save.
  - Undo stack with up to 30 reversible steps.
  - "First row is header" toggle for headerless CSVs.
  - Editable file name, persisted to the recent-files list.
  - Sortable columns with natural sort for mixed text and numbers.
  - Auto-detect comma, semicolon, tab, and pipe delimiters.
  - Resize columns by dragging the header edge; double-click to auto-fit.
  - Export current view as CSV, TSV, JSON, XLSX, or Markdown table; choose all rows, filtered rows, or selected rows.
  - Copy the visible table to clipboard as CSV.
  - Keyboard shortcuts: Ctrl+F focuses find, Ctrl+Z undoes, Ctrl+E exports.
  - URL detection: open .csv and .tsv links from the address bar in the same viewer.
  
  FREE AND PRO
  
  The free plan shows the first 5,000 data rows of each file and includes every cleanup, find/replace, audit, and export feature.
  
  CSV Preview Pro unlocks unlimited rows for large CSV and TSV files. The upgrade page passes your anonymous device ID to Stripe so the extension can unlock Pro automatically after payment.
  
  PRIVACY
  
  CSV file contents are processed locally in Chrome. The extension does not upload your CSV rows, headers, or edited cell values to a server.
  
  The extension contacts peakproductivity.online for Pro license checks using a randomly generated device ID. Stripe handles payment details on its hosted checkout pages.
  
  No account is required to use the free CSV viewer.
  
  SUPPORT
  
  For help, bug reports, or feature requests, contact [email protected].

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Permissions

storagealarms

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