Nothing leaves your machine.

Local network file transfer via WebRTC. Pair two devices with a 6-digit code and send files directly browser-to-browser.

Read-only file scanner. Point it at a folder and it reports which files fail to open — nothing is modified.

Find and remove unwanted apps on Ubuntu. List installed packages by size, check live RAM, safely purge, clean leftovers.

Clean a compromised Windows PC. Step-by-step guide with a built-in scanner script — no tech knowledge needed.

Extract audio from video files in your browser. Drop a video, pick MP3/WAV/AAC/OGG, download. Nothing leaves your machine.

JSON / YAML / CSV formatter, validator & converter. Paste or drop a file, auto-detect, pretty-print, convert.

QR code generator and camera scanner. Generate with text/URLs, download PNG/SVG, scan with your camera.

Image compressor and resizer. Drop an image, adjust quality and dimensions, preview size, download.

Install yt-dlp the clean way on Ubuntu — pipx isolation, mp4-by-default, deno, plus an animated progress-bar download script.

Text diff tool. Compare two texts with side-by-side word-level diff highlighting. Paste, diff, copy.

External drive repair for Linux & macOS. Step-by-step guide to find corrupted files, repair filesystems, and check drive health.

Home loan amortization calculator. Track payoff schedules, simulate prepayments, and compare rent vs buy — all in-browser.

Mass uploader to Google Drive. Pick a local folder, mirror its tree into Drive file by file, move to "processed" on success.

Excel batch splitter. Split a large XLSX/CSV into smaller files by row count, pick columns, fill down merged cells, download as ZIP.

ID card to Excel extractor. Show one sample card, define fields, then bulk-OCR photos/PDFs into an editable table and export to Excel.

iOS ↔ Android migration guide. Step-by-step checklist for switching phones — cloud prep, cable transfer, and post-swap setup for both directions.