🧰Tools

File, translation and checking utilities — bookmark once, use for years.

This category has 22 sites · last updated 2026-10-06

This category collects services you may not use daily but will want when a specific file, account, or network task arises. Bookmark the ones that fit your workflow.

🌐 1. Translation Tools

Tool	Core Strength	Best For
DeepL	Produces highly natural and fluent translations, especially for European languages and formal or academic texts.	High-quality text translation, such as paper abstracts, formal emails, and article polishing.
Google Translate	Supports the most languages and offers diverse modes like camera translation, real-time conversation, and full-page web translation.	Quick multi-language translation, travel communication, and grasping the general idea of web pages.

📄 2. File and Media Processing

Tool	Core Function	Best For
iLovePDF	Merge, split, compress, and convert PDFs, plus PDF-to-Office conversions.	Everyday office PDF tasks. Basic features are free and the interface is intuitive.
CloudConvert	Supports over 200 formats, covering documents, images, audio, video, e-books, and archives.	Handling obscure file formats or cross-media conversions (e.g., MP4 to GIF, EPUB to PDF).
TinyPNG	Smart compression for PNG and JPG images with virtually no visible quality loss.	Optimizing images for websites and blogs to reduce file size and speed up loading.
PhotoPea	A browser-based image editor with an interface and shortcuts highly similar to Photoshop, supporting PSD files.	Quick photo editing or PSD handling when professional desktop software is unavailable.

📡 3. Network and Infrastructure Checks

Speedtest: The standard tool for measuring internet connection speed. The first step in troubleshooting network lag or verifying broadband performance.
Downdetector: Monitors the real-time status of global websites and apps. When a service suddenly fails, check here to see if it's a server outage rather than your own network issue.
1.1.1.1: A public DNS service provided by Cloudflare, focusing on fast resolution speeds and privacy. A solid alternative to your ISP's default DNS.

4. Account Security and Network Analysis (For Learning & Research)

Have I Been Pwned: Enter an email or username to check if it appears in known public data breaches. Useful for studying the impact of cybersecurity incidents or checking your own exposure.
VirusTotal: Scans suspicious files and URLs using over 70 antivirus engines. Learning Tip: Uploaded files are automatically shared with security vendors and researchers, making it excellent for malware analysis and sample research. Avoid uploading files containing real personal privacy.
Bitwarden: An open-source password manager that supports cross-device sync and unlimited passwords on its free tier. Ideal for learning how to establish the habit of using unique, strong passwords for every site.
Proton Pass: Combines password management with hide-my-email aliases, perfect for protecting your real email when signing up for untrusted sites. See our Pass vs Bitwarden guide for details.
Proton Mail: Features default end-to-end encryption between Proton users. Great for studying encrypted communication mechanisms. See Proton Mail vs Gmail.
Proton VPN: Offers a free tier, ideal for testing connection stability across different networks. Primarily used for bypassing geo-restrictions and securing traffic on public Wi-Fi. See Proton VPN vs Mullvad.

Affiliate disclosure: The Proton product cards above are marked as affiliate links.

🛠️ 5. Developer and Historical Research Tools

Wayback Machine: View historical snapshots of web pages. Perfect for studying the evolution of web design or retrieving deleted or modified content.
CyberChef: The "Swiss Army knife" of data conversion. Supports encoding/decoding (Base64, Hex), encryption/hashing, regex, and format conversion, all running locally in the browser. Highly recommended for cybersecurity and CTF competition learning.
Namecheap: A well-known domain registrar with transparent pricing and free Whois privacy protection. Ideal for learning the Domain Name System (DNS) and registering domains for personal projects.

6. Usage Advice: Cloud vs. Local Processing

Understanding how a tool processes data helps you choose the right one:

Cloud Processing: Tools like iLovePDF, CloudConvert, and TinyPNG upload your files to their servers. This is highly convenient for everyday, non-sensitive files, but it's good practice to check their data retention policies.
Local Processing: Tools like PhotoPea (certain features), CyberChef, and Squoosh perform calculations directly in your browser without sending data to a server. Prioritize these when handling files that contain sensitive or private information.