CSV Viewer

A fast, local desktop app to open large CSV/TXT files, search and filter, and export to Excel — built with Tauri v2.

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Table of contents

• Screenshots
• Features
• Quick start / Installation
• Usage
• Supported platforms & formats
• Development & build
• Roadmap, known issues & contributing
• License

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Screenshots

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Features

• Open files — CSV, TXT, and XLSX via dialog or drag & drop.
• Delimiter detection — Common delimiters (comma, semicolon, tab, etc.) are detected when reading in the backend.
• Large datasets — Virtualized table; only visible rows are rendered in the DOM.
• Search & filter — Full-text across all columns; numeric filters with column names and operators (>, <, >=, <=, =).
• Column header — Single-click shows sum, min, max, average, and sample count n for numeric columns (based on currently filtered rows). Double-click inserts the column name into the search field.
• Navigation — Jump to a row by number.
• Export — Save the current view as Excel (.xlsx).
• Clipboard — Copy the table for pasting elsewhere.
• Appearance — Light and dark themes; in-app About dialog.
• Status bar — Row/column counts, visible row range, delimiter, file path.

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Quick start / Installation

Download installers and bundles from Releases (look for version tags v*).

Platform	Typical assets
Windows	NSIS setup (.exe), MSI (.msi), portable csv-viewer.exe
Linux	.deb, AppImage, portable csv-viewer
macOS	.dmg

Linux .deb example:

sudo apt install ./CSV\ Viewer_*_amd64.deb

See Tauri Linux prerequisites for system libraries (e.g. WebKit-GTK).

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Usage

1. Open a file with Open or drop it on the window.
2. Search with plain text or numeric expressions (e.g. Price > 10 or ColumnName <= 5).
3. Jump to a row using the row field and Go.
4. Export XLSX or Copy Table when you need the data elsewhere.
5. Use About for version and repository link.

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Supported formats

Category	Details
Import	CSV, TXT (auto delimiter), XLSX (sheet selector when applicable)
Export	XLSX (Excel-compatible)

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Development & build

Requirements: Node.js (LTS recommended), Rust (stable), and Tauri prerequisites for your OS.

git clone https://github.com/fly2nbc-oss/CSV_Viewer.git
cd CSV_Viewer
npm install
npm run tauri dev    # development
npm run tauri build  # production bundles

For a reliable Linux .deb only:

npm run tauri build -- --bundles deb

Release builds: Pushing a tag v* runs .github/workflows/release.yml (tauri-apps/tauri-action). Release assets include platform bundles; GitHub also attaches source archives. Use Release assets for direct downloads (not CI ZIP artifacts).

Binary size: src-tauri/Cargo.toml release profile uses opt-level = "z", LTO, strip, and panic = "abort"; most of the installed size is still the WebView runtime.

Project layout

• web/ — Static HTML, CSS, JavaScript frontend (loaded as frontendDist).
• src-tauri/ — Rust backend, Tauri config, icons (read_csv, read_xlsx, export_xlsx, drag-and-drop).
• packaging/manjaro/ — Local pacman packaging helpers.

More detail: CSV_Viewer_Doc.md.

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Roadmap, known issues & contributing

• Roadmap — Driven by Issues; suggestions welcome.
• Known issues — AppImage builds can fail if the Linux AppImage toolchain is missing or misconfigured; use --bundles deb as a fallback.
• Contributing — See CONTRIBUTING.md and CODE_OF_CONDUCT.md.

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License

Licensed under the Apache License, Version 2.0. See LICENSE.

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Repository: https://github.com/fly2nbc-oss/CSV_Viewer