Zero Snippet

CSV viewer and editor online — sortable table, filter, edit cells, export RFC-safe CSV

Use this free online CSV viewer and editor when you need a spreadsheet-style grid without installing Excel or Google Sheets: open comma-, semicolon-, tab-, or pipe-delimited exports, sort columns, search across every cell, tweak values inline, then copy or download UTF-8 CSV with proper quoting for commas and newlines inside fields. Parsing and editing run entirely in your browser—ideal for quick QA on data feeds, CRM slices, and config tables before you push them to a database or API. Continue to our CSV to JSON converter when you need structured JSON, or the CSV deduplicator when duplicates—not layout—are the problem.

Delimiter: Auto (Comma)
Delimiter

4 row(s), 5 column(s). Showing 3 data row(s) in the table.

Table

#
2
3
4

Raw CSV (export)

Why use a browser-based CSV viewer instead of a desktop spreadsheet?

Lightweight CSV table viewers help when you are on a locked-down machine, reviewing a vendor export on a shared laptop, or sanity-checking a pipeline artifact without waiting for a heavy app to open. Because rows stay in memory inside your tab, you avoid accidental cloud sync of sensitive HR or finance extracts. The trade-off is scale: very large files are better handled by streaming CLI tools or databases. For everyday tabular CSV and TSV files, this page gives you sort, filter, and inline edits with an export path that matches RFC 4180 quoting rules so downstream importers stay happy.

How to use this CSV viewer (step by step)

  1. Paste or upload your file. Use Upload CSV for local .csv, .tsv, or plain text, or paste directly into the text area. Click Load sample to see quoted fields and mixed types in action.
  2. Choose delimiter. Leave Auto-detect on for most exports; pick comma, semicolon, tab, or pipe manually if your file mixes separators or the detector picks the wrong one on short samples. Toggle First row is header so labels stay fixed while you sort body rows.
  3. Explore and refine. Type in Filter rows to keep only lines where any cell matches your query (case insensitive). Click a column header to cycle ascending, descending, or original order—sorting applies to data rows, not the header line when that mode is on.
  4. Edit and ship. Change any cell, including header names when the header row is enabled. Use Export filtered rows only when your download should match the filtered subset. Press Copy CSV or Download .csv, or copy from the Raw CSV preview at the bottom.

Keywords and workflows this page matches

Teams search for an online CSV viewer, edit CSV without Excel, TSV viewer in browser, or sort and filter CSV before SQL or API import. This tool covers those intents with explicit delimiter control and a visible export buffer. When you only need to convert shape instead of editing cells, the CSV to JSON and JSON to CSV converters stay the fastest path. When you must generate INSERT statements, use the CSV to SQL converter. For newline lists that are not yet a table, normalize with the comma separator tool first.

CSV quirks: quoting, locales, and line endings

European Excel versions often emit semicolon-separated CSV when the locale uses comma as the decimal separator. Web exports may emit UTF-8 BOM bytes; most parsers strip them, but if the first header looks wrong, open the raw file in a text editor and confirm the first characters. Line endings CRLF versus LF rarely matter for logical rows here because newline characters inside quoted fields are preserved. After edits, verify totals against the source system and consider hashing binaries with the file hash checker when you exchange artifacts with operations teams.

Privacy and limits

Nothing is transmitted to our servers for parsing or export: it is the same client-side model as the rest of the file and data tools collection. Extremely wide or long tables may feel slow because each visible cell is an editable field—trim columns in your source tool or split files if performance suffers. This viewer does not run spreadsheet formulas; it edits literal cell text only.

Related file and data tools

Browse the full catalog section for more utilities:

  • CSV Deduplicator — Remove duplicate rows by chosen columns to clean mailing lists and product feeds.
  • CSV to SQL Converter — Generate INSERT statements from a CSV for quick database seeding and migrations.
  • Image to Base64 Converter — Encode images to Base64 data URIs for embedding in HTML, CSS, or API payloads.
  • Image Resizer — Resize by pixels or percentage in the browser—privacy-friendly, no server upload required.
  • Image Compressor — Shrink JPG and PNG with quality control and before/after size stats for faster pages.
  • Image Format Converter — Convert between JPG, PNG, and WebP locally to match CMS, email, and performance needs.
  • Image Metadata Viewer — Inspect EXIF: camera, lens, GPS, dimensions, and exposure—great for photographers and forensics.
  • File Hash Checker — Compute MD5, SHA-1, and SHA-256 hashes of uploads to verify downloads and integrity.
  • SVG Optimizer — Minify and clean SVG markup to cut file size for icons, illustrations, and inline graphics.

Frequently asked questions

What does this online CSV viewer and editor do?
You paste or upload comma- or tab-separated text and see it as a table with sortable columns, a quick filter across all cells, and inline cell editing. You can copy or download the result as CSV again—all processing happens in your browser.
Is my spreadsheet data uploaded to a server?
No. Parsing, sorting, filtering, and export run entirely in your tab using JavaScript. Files you choose are read with the File API locally; nothing is sent to our servers unless another page on this site explicitly makes a network request.
Which delimiters are supported?
You can choose Auto-detect (recommended for typical exports), or force comma, semicolon, tab, or pipe. Auto mode scores the first lines of your file the same way as our other CSV tools so semicolon CSV from Europe and tab-separated files both work.
How does sorting work with a header row?
When “First row is header” is on, the first row stays at the top as column labels and only body rows are sorted when you click a column header. When it is off, every row is treated as data and participates in sorting.
Does filtering delete rows from my file?
Filtering only changes what you see in the table so you can focus on matching rows. The full dataset remains in memory until you export. Use “Export filtered rows only” when you want a smaller CSV that matches the current filter.
Why do some cells show extra quotes in the raw text but not in the table?
RFC 4180 CSV wraps fields that contain commas, quotes, or newlines in double quotes and doubles internal quotes. The parser strips those wrappers for display; export adds them back when needed so the file stays valid.
Can I open very large CSV files?
The tool is meant for typical developer and office-sized sheets. Huge files may make the tab slow because every cell renders as an input. For multi-gigabyte logs, prefer command-line tools or a dedicated desktop spreadsheet.
How is this different from the CSV to JSON converter?
The CSV to JSON tool turns rows into JSON arrays or objects for APIs and scripts. This viewer is for visually scanning, light edits, sorting, and filtering before you copy CSV again—pair them when you need both JSON and spreadsheet workflows.
Can I remove duplicate rows here?
This page focuses on viewing and light editing. For deduplication by selected columns, use our dedicated CSV deduplicator tool linked from the article section below.