Kostenlose Online-Tools für tägliche Aufgaben.

QR-Codes, PDFs, Konverter, Timer und mehr – ohne Anmeldung oder Installation.

JW Tool Box bietet über 50 kostenlose Online-Tools: PDFs, QR-Codes und Konverter. Alles läuft sicher und lokal in Ihrem Browser, ohne Server-Uploads.

Empfohlene Tools

Eine Auswahl der nützlichsten Browser-Utilities, die derzeit in der JW Tool Box veröffentlicht sind.

Neueste Anleitungen

Der Blog bleibt englisch und konzentriert sich auf praxisnahe How-tos rund um die Tools.

  • How to Merge PDF Files Free Online — No Uploads, No Limits (2026)

    Combining PDF files should be simple, free, and private. Whether you're merging a contract, assembling a thesis, or organizing receipts for an expense report, you shouldn't have to upload your documents to a stranger's server to do it. TL;DR — Use the PDF Merge Tool to merge any number of PDFs in your browser. No upload, no signup, no daily limits, no file size cap imposed by a server. Drag, d…

  • Instagram Reel Cover Size 2026: 1080×1920 Dimensions, Safe Zone & Grid Crop

    If your Instagram Reel cover looks great in preview but gets awkwardly cropped in your profile grid—or if text keeps disappearing at the edges—you're using the wrong safe zones. This guide gives you every dimension you need for 2026, with a simple workflow to get it right every time. ⚡ Quick Reference: Instagram Reel Cover Dimensions 2026 Element Dimensions Notes Reel video 1080 × 1920 px (…

  • Favicon Size Guide 2026: ICO, PNG, SVG, and Apple Touch Icon Sizes

    In the early web, a single favicon.ico file was enough. Today that is only the fallback layer. Modern sites usually need a small browsertab icon, a few PNG assets for higherdensity displays, and at least one icon large enough for PWA or launcher use. If you are still shipping only a blurry 16 px file, the brand signal is weak everywhere it matters: browser tabs, shortcuts, manifests, iPhone ho…

  • How to Keep Screen On During Google Meet, Zoom & Teams (2026)

    Working from home? Nothing kills your flow faster than your screen going dark in the middle of a Zoom call, a client demo, or while monitoring your work dashboard. Stop fighting with power settings. Use our Keep Screen On tool to prevent sleep mode with one click—no software installation, no admin privileges required. If your main problem is a lockeddown corporate laptop where IT prevents you…