SmoothCSV
The Ultimate CSV Editor
smoothcsv.com Source★ 451Data & Analytics / Spreadsheets & Data Analysis AI
- Monthly visits
- 12.5K
- Up36.9%MoMSep 2026
- Public revenue
- Undisclosed
- No public revenue evidence yet
- Entry price
- $31.16/mo
- Higher than 79% of peersNiche median $15/mo
- Launched
- 17mo ago
- 2025-07-01 · Est.
Traffic
Marketing moves
Launches, search & content, referrals, promotions- お、nanoやOh My Zshと同じくらい使われてる?? https://do-gu.niwa.dev/tools/smoothcsv
@kohii00 · 2026-09-09 · 11 likes · 0 reposts · 1,053 views
Launched on Show HN (3 pts)Launch
SmoothCSV – CSV editor that opens 1M rows in 2s, with SQL queries — Hi HN, I'm kohii, a software engineer from Japan. I've been building CSV editors for 15 years. This is my third rewrite from scratch, buil…
Feb 11 · 9mo agoLaunch page
Launched on Show HN (5 pts · 1 comments)Launch
SmoothCSV – The Ultimate CSV Editor — Hey HN! I've been building CSV editors for 15 years. This is my third rewrite, and I think I finally got it right. Key features: - Excel-l…
Jul 11, 2025 · 16mo agoLaunch page
Launched on Product HuntLaunch
The ultimate CSV editor you've been waiting for
Jul 1, 2025 · 17mo agoLaunch page
Third-party reviews & case dossiers
Acquisition breakdowns, engineer reviews & open-source metrics- Post excerpt:
- Hey HN! I've been building CSV editors for 15 years. This is my third rewrite, and I think I finally got it right. Key features: - Excel-like operation for intuitive use - Equipped with basic to advanced tools necessary for handling CSV - Supports various formats and character encodings. Can handle CSVs with different column counts - Cross-platform (Windows/
- Post excerpt:
- Hi HN, I'm kohii, a software engineer from Japan. I've been building CSV editors for 15 years. This is my third rewrite from scratch, built with Tauri, Rust, and web technologies. *Why I built this:* Modern dev tools, that I use daily, are incredibly polished. CSV editors, not so much. I wanted a tool that handles CSVs as they are (messy column counts, vario
Open Source & Agent Ecosystem
- GitHub Stars
- ★ 451
- Forks
- 3
- License
- See repository
- Primary language
- —
Agent, MCP & Developer Integration
CLI / SDK- Exposed tool capabilities:
- SQL Query GenerationCSV DiffEditing CSV files
Traffic sources
Traffic breakdown
Channels
- Organic Search68%
- Direct25%
- Referrals6%
- Other1%
Countries
- Japan65%
- United States10%
- Germany6%
- France5%
- Italy5%
Search
Domain authority —Domain registered 2012-12-28
| Keyword | Monthly volume |
|---|---|
| csv editor | 2,860 |
| smoothcsv | 1,010 |
| smooth csv | 470 |
| スムースcsv | 330 |
| smooth csv .net framework | 280 |
Traffic data: Vaneform
Pricing
Trial: None · 2 paid tiers ($31.16) · Observed 2026-11-04 · Pricing page
Entry price $31.16/mo, Higher than 79% of peers; “Spreadsheets & Data Analysis AI” median is $15/mo.View pricing benchmark
Pages & changes
Key pages
Weekly snapshots- Homesmoothcsv.com/
- Pricingsmoothcsv.com/pricing Snapshot 2026-11-04
- Featuressmoothcsv.com/features Snapshot 2026-11-04
Design
Minimal Monochrome (Light canvas, balanced density) featuring centered headline + cta layout and product ui screenshot / component visuals.
First-screen preview · click to zoom
First-screen pitch & conversion flow
“The Ultimate CSV Editor”
Centered Headline + CTA hero structure paired with download app / install extension CTA and live generated output showcase.
Conversion path: Centered Headline + CTA + Product UI Screenshot / Component → Download App / Install Extension · Trust bar: Live Generated Output Showcase
- Category Positioning Anchor
- Large Hero Product Shot
Palette · click to copy
- Typography
- 8.0
- Color & Contrast
- 7.0
- Layout & Spacing
- 8.0
- Craft & Polish
- 8.0
- Distinctiveness
- 6.0
Structure
- Fonts
- Arial / monospace
- Hero layout
- Centered Headline + CTA
- Primary visual
- Product UI Screenshot / Component
- Conversion CTA
- Download App / Install Extension
- Social proof
- Live Generated Output Showcase
- Navigation
- Full-Width Top Bar
- Theme & density
- Light · Balanced
- Corners & depth
- Medium Radius · With shadow
Preview full AI design brief (includes :root CSS variables & layout rules)Style tokens only; never copy brand names, logos, copy, or images
# Design Brief: Minimal Monochrome (with Precision Swiss Grid)
Monochrome palette with a single accent color, hairline dividers, and generous whitespace.
## Design Tokens
```css
:root {
--background: #ffffff;
--surface: #f7f7f7;
--foreground: #222222;
--muted-foreground: #6f7479;
--accent: #078e7d;
--radius: 8px;
--font-heading: "Arial", ui-sans-serif, system-ui, sans-serif;
--font-body: "Arial", ui-sans-serif, system-ui, sans-serif;
--font-mono: "monospace", ui-monospace, monospace;
}
```
Color area ratio: Background #FFFFFF (~77%) · Surface #F7F7F7 (~10%) · Text #222222 (~7%) · Muted Text #6F7479 (~4%) · Accent #078E7D (~2%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.
## Layout & Conversion Structure
- Hero layout: Centered Headline + CTA
- Navigation: Full-Width Top Bar
- Theme & density: Light · Balanced
- Border radius & elevation: Medium Radius; use elevation shadows to separate layers
- Primary visual medium: Product UI Screenshot / Component
- Conversion CTA: Download App / Install Extension · Trust bar uses Live Generated Output Showcase
- Headline hook: Category Positioning Anchor
- Hero components: Large Hero Product Shot
- Spatial layout notes: Centered Headline + CTA hero structure paired with download app / install extension CTA and live generated output showcase.
- Visual summary: Minimal Monochrome (Light canvas, balanced density) featuring centered headline + cta layout and product ui screenshot / component visuals.
## Avoid
- Multi-stop neon gradients
- Heavy drop shadows
- More than one competing accent color
Implement the UI following the design tokens and layout specifications above: use only these color variables, and reserve the accent color strictly for primary actions and active states. Adopt only this visual style—never copy any reference product’s brand name, logo, copy, or imagery.
Questions & evidence
- How much does SmoothCSV cost?
- Single User: $31.16/once; Team: $31.16/once. Observed 2026-11-04. Check the source for current billing terms, usage limits and taxes.Source
- How much website traffic does SmoothCSV get?
- Vaneform estimates 12.5K website visits in 2026-09. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
- What is SmoothCSV and what platforms does it support?
- SmoothCSV is catalogued under Spreadsheets & Data Analysis AI: The Ultimate CSV Editor. Supported platforms: CLI / SDK.
- Is SmoothCSV open source?
- SmoothCSV has a public repository (https://github.com/kohii/smoothcsv3) with its source repository published, recording 451 GitHub stars.Source
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