CSS Gradient Generator
Design stunning CSS gradients visually. Linear, radial, and conic gradients with unlimited color stops. Copy CSS code instantly. Free online gradient maker.
Color Palette Generator
Generate harmonious color palettes using color theory. Complementary, analogous, triadic, and split-complementary schemes. Copy HEX, RGB, HSL codes. Free.
Password Generator
Generate strong, secure, random passwords with custom length and character options. Includes strength meter, entropy calculation, and one-click copy. Free, no signup.
Favicon Generator
Generate favicons from text, emoji, or initials. Preview at multiple sizes (16, 32, 48, 64, 128, 256px). Download as PNG or ICO. Free online favicon creator.
API Rate Limit Calculator
Calculate and design API rate limiting algorithms including Token Bucket, Leaky Bucket, and Fixed Window. Size capacity, burst limits, and requests per second.
API Rate Limiting & Token Bucket Algorithm Simulator
Simulate API rate limiting across Token Bucket, Leaky Bucket, Fixed Window, and Sliding Window Counter algorithms. Model burst capacity, HTTP 429 Retry-After, and Redis memory.
API Response Formatter
Format, beautify, and analyze raw HTTP API responses and headers with payload metrics, gzip compression ratios, and cURL snippet generation.
API Tester Pro
Free, fast, and secure api tester tool for your everyday needs. Fast, free, and secure client-side execution in your browser.
ASCII Art Generator
Generate ASCII art from text online. Convert your text to block letter banners instantly. Fast, free, and secure client-side execution in your browser.
Bandwidth Cost Calculator
Calculate and model monthly cloud bandwidth and data egress expenses across AWS, Google Cloud, Azure, and Cloudflare. Evaluate CDN offload savings and gigabyte transfer.
Base32 Encoder
Free, fast, and secure base32 encoder tool for your everyday needs.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings back to plain text instantly. Supports UTF-8, file encoding, and data URIs. Free, private, no signup required.
Bcrypt Hash Generator
Generate Bcrypt hashes online for your passwords. Set custom salt rounds for security testing. Fast, free, and secure client-side execution in your browser.
Big-O Complexity & Execution Time Calculator
Analyzing algorithm efficiency can be tricky when translating theoretical Big-O notation into real-world performance. Calculate operation counts, estimated CPU runtimes, and memory usage across input sizes.
Blacklist Lookup
Check if an IP address or domain name is listed in popular anti-spam databases and blacklists. Fast, free, and secure client-side execution in your browser.
Bloch Sphere & Single-Qubit Quantum State Calculator
Interactive 3D Bloch Sphere visualizer and single-qubit quantum state calculator. Calculate state vectors, measurement probabilities, Pauli/Hadamard gates, and density matrices.
Bloom Filter False Positive & Optimal Size Calculator
Calculate Bloom filter false positive probability, optimal bit array size m, number of hash functions k, memory footprint, and space savings over hash tables.
Brotli Checker
Check if a website is using Brotli compression (br) to speed up loading times. Fast, free, and secure client-side execution in your browser.
Check CSR
Check and validate your Certificate Signing Request (CSR) before sending it to a Certificate Authority. Fast, free, and private client-side utility by Toolzyo.
Chmod Calculator
Calculate Unix file permissions with a visual chmod calculator. Toggle read, write, execute for owner, group, and others. Get numeric and symbolic notation.
Class C IP Checker
Check if your IPs are hosted on the same Class C IP range. Good for SEO IP diversity analysis. Fast, free, and secure client-side execution in your browser.
Cloud SLA Uptime Calculator
Calculate maximum allowable downtime and error budgets across 99%, 99.9%, 99.95%, 99.99%, and 99.999% high availability SLAs per day, month, and year.
Cloud Storage Cost Calculator
Calculate and model monthly object storage expenses across AWS S3, Google Cloud Storage, and Azure Blob. Estimate storage tiers, data egress, and API operation fees.
CNN Receptive Field & Feature Map Dimensions Sizing Calculator
Calculate convolutional neural network feature map spatial dimensions, cumulative receptive field (RF), feature stride, parameters, and FLOPs across CNN layers.
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