Blog
Guides, deep dives and practical notes on the problems these tools solve.
76 articles
- 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 - How to edit videos and enhance audio completely offline in your browser
Trim on a visual timeline, reframe for Reels or YouTube, grade colour, add text and music, then clean up voice recordings with EQ, loudness normalisation and ID3 tags — without uploading a single file.
8 min readvideo editingaudioffmpegweb audioprivacy - How to merge, split and reorder PDF pages without uploading them
A practical guide to combining PDFs, reordering page thumbnails, rotating pages, extracting ranges and splitting files locally in your browser.
7 min readpdfmergesplitprivacy - How to remove watermarks, timestamps and small objects from images locally
Use brush, box and clone-stamp tools to clean watermarks, date stamps and distractions from photos in your browser, with tips for natural results.
6 min readimageswatermarkeditingprivacy - How to edit and annotate PDFs privately in your browser
A practical guide to adding text, highlights, drawings, signatures and images to a PDF while keeping the document on your device.
8 min readpdfeditingannotationsprivacy - How to trim, combine and export video in your browser
A practical browser video-editing workflow covering timeline cuts, clips, audio, resolution, frame rate and export quality without uploading footage.
8 min readvideoeditingcompressionprivacy - How to find and fix broken links before they hurt your site
A practical workflow for finding 404s, reviewing redirects and validating sitemap URLs without removing useful links by mistake.
6 min readbroken linkssitemapstechnical SEO404 errors