Developer Tools
Free, fast, no-signup tools for developers. All processing happens in your browser — your data never leaves your machine.
Kubernetes Resource Calculator
Calculate CPU & memory requests/limits, total footprint across replicas, and the resulting Pod QoS class — right-size pods and avoid OOMKills.
SLA & Uptime Calculator
Convert any SLA percentage (99.9%, 99.99%, 99.999%) into allowed downtime per day, month & year. Includes a nines reference table & error budgets.
Docker Run Command Generator
Build docker run commands visually — ports, volumes, env & flags — and convert them to an equivalent docker-compose.yml. Runs in your browser.
YAML ↔ JSON Converter
Convert between YAML and JSON instantly. Supports nested structures, comments preservation, and real-time preview.
Base64 Encoder / Decoder
Encode or decode Base64 strings. Useful for data URIs, API auth tokens, and binary-to-text conversion.
Cron Expression Builder
Build and validate cron expressions with a visual editor. See next execution times and human-readable descriptions.
CIDR Subnet Calculator
Calculate subnet ranges, usable IPs, broadcast addresses, and more from any CIDR notation or IP range.
Strong Password Generator
Generate cryptographically secure passwords with custom length and character sets. Uses Web Crypto API — all processing is local.
JSON Formatter / Validator
Pretty-print, validate, and minify JSON instantly. Perfect for debugging API responses, config files, and data payloads.
JWT Decoder
Decode JSON Web Token header, payload, and signature. Check expiry status. All processing local — your tokens never leave your machine.
Hash Generator (MD5/SHA)
Compute MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes from any text input. All processing in your browser via Web Crypto API.
UUID Generator
Generate cryptographically secure UUID v4 identifiers. Batch generate up to 100 UUIDs with one click. Uses Web Crypto API.
Timestamp / Epoch Converter
Convert Unix epoch timestamps to human-readable dates and vice versa. Shows current time live. Supports seconds and milliseconds.
All tools are free and run entirely in your browser. No data is ever sent to our servers.