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Free Online Tools
10,000+ tools that run entirely in your browser.
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The tools people use the most.
PNG to JPG
Convert PNG images to JPG format instantly in your browser
Image Compressor
Compress images to reduce file size while maintaining quality
Merge PDF
Combine multiple PDF files into a single document
JSON Formatter
Format, validate, and beautify JSON data with syntax highlighting
Password Gen
Generate strong, secure passwords with customizable length and complexity
QR Code Gen
Generate QR codes for URLs, text, WiFi, and more
Color Picker
Pick colors and convert between HEX, RGB, HSL, and CMYK formats
Word Counter
Count words, characters, sentences, and paragraphs in your text
Editorial — anti-slop guides
Long-form, sourced explanations of what real assessment looks like — and where to find tools that aren't theater.
Most browser-based "redirect checker" tools cannot actually fetch URLs because of CORS. Learn the real techniques that work: curl one-liners, DevTools inspection, and fixing accumulated server-side rule cruft.
Most web-based "OG checker" tools cannot fetch arbitrary URLs because of CORS, so they show mock data. Real OG validation requires platform debuggers, force-rescrape rituals, and server-side fetching with cheerio.
Free "plagiarism checker" web tools that compare two pasted texts using Jaccard or n-gram similarity are not plagiarism detectors. Real plagiarism detection requires comparing against the indexed web and academic databases.
Free headline analyzer tools score titles using a hardcoded list of 27 power words and a few length rules. Real headline performance depends on audience, context, and A/B testing — not a static formula. Here is what those tools actually do, why their scores are meaningless, and what to use instead.
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Original benchmarks, comparisons, and data-driven guides with interactive charts and downloadable datasets.
Comprehensive comparison of 6 databases with performance benchmarks, feature matrices, pricing, scalability analysis, ORM compatibility, developer satisfaction data, and use case recommendations for every scenario. 28,000+ words.
The definitive guide to AI and ML tools in 2026. Covers LLMs, prompt engineering, fine-tuning, RAG, embeddings, vector databases, AI agents, multimodal AI, AI coding assistants, image generation, AI audio, and ethical AI. 15+ model comparisons, 30+ tool reviews. 32,000+ words.
The definitive reference covering 100+ file formats across 9 categories. Includes interactive comparison charts, compression benchmarks, downloadable datasets, decision trees, an 80-term glossary, and 30 FAQs. 52,000+ words.
The definitive web security guide for 2026. OWASP Top 10, XSS, CSRF, SQL injection, SSRF, CSP, CORS, HSTS, supply chain security. 50+ glossary, 20 FAQ. 35,000+ words.