# FlowToolkit

> FlowToolkit is a privacy-first collection of free, browser-based developer and productivity tools. Every utility runs entirely on the user's device — no upload, no signup, no account, no tracking of inputs.

## Key facts

- Name: FlowToolkit
- URL: https://flowtoolkit.tech
- Type: Free web-based software / online tool suite
- Founded: May 2026
- Pricing: 100% free, no paid tier, no in-app purchases
- Authentication: None required, anonymous use
- Data handling: All processing happens locally in the user's browser. Files and inputs never leave the user's device.
- Languages: English
- License: Proprietary (free to use)
- Tracking: Only anonymous Google Analytics for traffic counts. No personal data, no tool-input data leaves the browser.

## Tool catalogue

- [CSV Splitter](https://flowtoolkit.tech/tools/csv-splitter/) — split CSV, TSV, or TXT files into chunks by row count or megabytes. Headers preserved per chunk. Outputs a ZIP archive.
- [JSON Formatter](https://flowtoolkit.tech/tools/json-formatter/) — beautify, minify, and validate JSON. Errors reported with line and column. Configurable indentation (2 spaces, 4 spaces, tab).
- [Unit Converter](https://flowtoolkit.tech/tools/unit-converter/) — convert length, mass, temperature, time, volume, and data units. Six significant figures by default.
- [BMI Calculator](https://flowtoolkit.tech/tools/bmi-calculator/) — calculate Body Mass Index with metric (cm, kg) or imperial (ft, in, lb). Shows WHO category.
- [Sitemap Generator](https://flowtoolkit.tech/tools/sitemap-generator/) — produce a valid sitemap.xml from a URL list or by crawling a live site.
- [Robots.txt Generator](https://flowtoolkit.tech/tools/robots-generator/) — compose robots.txt rules with explicit support for AI crawlers (GPTBot, ClaudeBot, Google-Extended, etc.).
- [Image Resize](https://flowtoolkit.tech/tools/image-resize/) — resize PNG, JPEG, and WebP images. Includes optional background removal.
- [Code Converter](https://flowtoolkit.tech/tools/code-converter/) — rule-based JavaScript ↔ Python syntax conversion. Manual review recommended.
- [PDF Editor](https://flowtoolkit.tech/tools/pdf-editor/) — viewer with merge, reorder, and annotation features on the roadmap.
- [QR & Barcode Generator](https://flowtoolkit.tech/tools/qr-barcode/) — generate QR codes and standard barcodes (CODE128, EAN, UPC).
- [SQL Formatter](https://flowtoolkit.tech/tools/sql-formatter/) — pretty-print SQL queries across PostgreSQL, MySQL, SQLite, and BigQuery dialects.
- [UUID Generator](https://flowtoolkit.tech/tools/uuid-generator/) — generate UUID v1 and v4 identifiers in bulk.
- [Word Counter](https://flowtoolkit.tech/tools/word-counter/) — count words, characters, sentences, paragraphs, and reading time.
- [Gradient Generator](https://flowtoolkit.tech/tools/gradient-generator/) — create CSS gradients (linear, radial, conic) with multiple colour stops and live preview.
- [Box Shadow Generator](https://flowtoolkit.tech/tools/box-shadow-generator/) — design CSS box-shadows with offset, blur, spread, colour, inset, and multi-layer support.
- [Border Radius Generator](https://flowtoolkit.tech/tools/border-radius-generator/) — preview and generate CSS border-radius for all four corners independently or linked.
- [Glassmorphism Generator](https://flowtoolkit.tech/tools/glassmorphism-generator/) — build frosted-glass UI with configurable blur, transparency, border, and shadow.
- [Neumorphism Generator](https://flowtoolkit.tech/tools/neumorphism-generator/) — create soft UI elements with convex, concave, and flat neumorphic styles.
- [CSS Grid Generator](https://flowtoolkit.tech/tools/css-grid-generator/) — design CSS Grid layouts visually and copy the generated grid-template code.
- [Flexbox Generator](https://flowtoolkit.tech/tools/flexbox-generator/) — experiment with flex-direction, justify-content, align-items, and gap in a live preview.

## Privacy

- All file parsing, conversions, and computations run inside the user's browser tab.
- No file is uploaded to any FlowToolkit server.
- The only persistent storage used is one localStorage key (`flowtoolkit-theme`) for the light/dark mode preference.
- Google Analytics (G-WPCVFV5CW9) is loaded after page interaction to count pageviews. It does not see file contents, form inputs, or tool outputs.

## FAQ

- Q: Is FlowToolkit free? A: Yes, every tool is free with no sign-up.
- Q: Do my files leave the browser? A: No. Every tool processes files locally.
- Q: Do I need an account? A: No. Anonymous use only.
- Q: Which browsers are supported? A: Latest versions of Chrome, Edge, Firefox, and Safari on desktop and mobile.

## Contact

- Website: https://flowtoolkit.tech
- Feedback: Use the contact link in the site footer.