Step-by-step tutorials for everyday tech tasks — PDF, images, WiFi, and more.
39 tutorials
Enable SSH on Linux, Windows, and macOS. Install, start, configure, connect, and troubleshoot SSH server.
Install Docker on Ubuntu, Debian, CentOS, and Fedora. Official repo, post-install, Docker Compose, and troubleshooting.
Install Nginx on Ubuntu, Debian, CentOS. Start, serve a site, virtual hosts, HTTPS with Let's Encrypt, and configuration.
Install Node.js the right way. nvm (recommended), apt, official installer, Docker. Manage versions and troubleshoot.
Mount drives, USBs, NFS shares, and partitions in Linux. Temporary, fstab permanent, formatting, and troubleshooting.
Create cron jobs in Linux. Crontab syntax, schedule expressions, examples, logging, and troubleshooting.
Set a static IP on Linux (Netplan, NetworkManager), Windows, and macOS. Step-by-step with troubleshooting.
Pi-hole setup guide. Block ads network-wide. Docker and bare metal install, DNS config, blocklists, and monitoring.
Proxmox setup from scratch. VMs, LXC containers, networking, storage, backups, GPU passthrough, and optimization.
Raspberry Pi setup from unboxing to running. Flash OS, enable SSH, Wi-Fi, install software, server projects.
Find which DNS server you're using on any device. Check if it's your ISP or a public DNS.
Find your screen resolution on any device. What resolution means and common display sizes.
Test your internet speed and understand download, upload, ping, and jitter results.
Speed up browsing and fix DNS issues by switching to Cloudflare, Google, or Quad9 DNS. Instructions for every device.
Check if a port is open on any server using online tools, telnet, netcat, nmap, or PowerShell. Quick and easy methods.
Find your MAC address on Windows, Mac, iPhone, Android, Linux, and your router. Quick methods for every device.
Fix website errors by clearing your DNS cache. Step-by-step for Windows, Mac, Linux, iPhone, Android, and Chrome.
Resize images for free directly in your browser — no uploads, no accounts, no watermarks. Works with JPG, PNG, and WebP.
Combine multiple PDFs into one or split pages out of a PDF — free, private, no upload required. Works on any device.
Test your internet speed and actually understand the results — download, upload, ping, jitter, and what speeds you need for different activities.
Generate QR codes for free — URLs, WiFi passwords, text, contact info. No account needed, download as PNG instantly.
Convert WebP images to PNG or JPG instantly in your browser — no upload, no account, batch conversion supported.
Forgot your WiFi password? Find it on Windows, Mac, iPhone, Android, or your router with these step-by-step instructions.
Convert photos and images to PDF for free — combine multiple images, reorder pages, adjust settings. No upload, works in your browser.
Every way to take a screenshot on Windows, Mac, iPhone, Android, and Chromebook — full screen, selected area, scrolling, and more.
Make your PDFs smaller for email and uploads — practical tips for reducing PDF file size without losing quality.
Extract audio from any video file — MP4, MOV, WebM, MKV to MP3. Free, fast, no software needed.
Test your keyboard and mouse online for free — detect stuck keys, ghost keys, button problems, scroll issues, and double-click speed.
Create passwords that cannot be cracked — understand what makes them strong, how hackers break weak ones, and use a free generator.
Format messy JSON into clean, readable output. Validate syntax, minify for production, and pretty-print with one click.
Compare two versions of text and instantly see what changed — added lines, removed lines, and modifications highlighted.
Convert PNG to JPG with a quality slider — reduce file size by up to 90%. Free, private, no upload required.
Find your public IP address instantly with a map showing your location. Check your ISP, verify your VPN, and look up any IP.
Encode and decode Base64 for free — text, files, images. Understand what Base64 is and when to use it.
Convert between HEX, RGB, and HSL color codes instantly. Understand color formats and copy CSS-ready values.
Convert Unix epoch timestamps to readable dates and back. Understand what epoch time is and when you need it.
Generate all the favicon sizes your website needs from a single image — .ico, .png, Apple touch icon. Free, no software required.
Convert text to UPPERCASE, lowercase, Title Case, or Sentence case instantly. Free, no signup, paste and convert.
Learn Markdown from zero — headings, formatting, links, images, code blocks, tables. Practice with a free live preview editor.