Blog
Guides, deep dives and practical notes on the problems these tools solve.
82 articles
- Reviewing code diffs side by side: spotting changes and merging snippets offline
Compare two versions of code in your browser, read side-by-side and line diffs correctly, pick the right granularity and keep private code on your device.
4 min readgitdiffcodedev-tools - CSS cubic-bezier vs spring animations: choosing and exporting better motion
Choose between CSS easing curves and physical springs, tune overshoot and damping, and export motion for CSS, Tailwind, Motion and native apps without uploads.
4 min readcssanimationeasingspring - How to visually edit and minify SVG path data offline
Understand SVG path commands, drag points, convert absolute and relative commands, transform shapes and shrink path d strings — all in your browser.
4 min readsvgiconsdesign - How to fix out-of-sync SRT and VTT subtitles in your browser
Fix subtitles that are early, late or drift over time: offset shifts, 23.976 vs 25 fps conversion, two-point sync, SDH cleanup and SRT ↔ VTT conversion — without uploading anything.
5 min readsubtitlesvideosrtvtt - Convert curl to Python, JavaScript, Go, PHP and more — offline
Turn a curl command copied from DevTools or API docs into fetch, Axios, Python requests, Go, PHP, Java, C#, Rust or Dart code without sending your tokens anywhere.
5 min readcurlapihttpcode generation - Open and edit Excel files offline in your browser with XLSX Studio
View and edit XLSX, XLS and ODS workbooks without uploading them: multiple sheets, live formulas, formatting and exports to XLSX, CSV, JSON and Markdown.
6 min readexcelxlsxspreadsheetprivacy - Record your screen with webcam and audio, and optimize SVGs offline
Capture screen, microphone and a webcam bubble in your browser, then shrink SVG icons with safe presets, precision control and batch ZIP export.
6 min readscreen recordingsvgoptimizationprivacy - Mastering JSON diffs and technical Markdown: debug API drift and write docs offline
Compare API responses with ignored keys, order-agnostic arrays and JSON Patch export, then document the change in a Markdown editor with live preview — all in your browser.
6 min readjsonmarkdownapidocumentation - Extracting text and tables from scanned PDFs — 100% offline with WebAssembly
How to pull text and tables out of scanned PDFs, receipts and photos in the browser with OCR, then export the tables to CSV, Markdown or JSON without uploading anything.
6 min readpdfocrtablescsvprivacy - From SQL DDL to TypeScript, Zod, Prisma and Drizzle — plus clean CSV data, all offline
Turn CREATE TABLE statements into type-safe schemas and an ER diagram, then inspect, clean and export CSV files without uploading your data anywhere.
7 min readsqltypescriptdrizzleprismacsvprivacy