Free tools for engineering leaders
Calculators and developer utilities from the NextGen team. No signup, no email gate — just working tools we use with our clients.
NextGen's free tools include calculators for staff augmentation cost and software project budgets, plus browser-based developer utilities for JSON ↔ YAML, Base64, URL encoding,JWT decoding, UUID & hash generation, Unix timestamp conversion,password generation, Markdown → HTML, HEX/RGB/HSL color conversion, SQL formatting,case conversion, Lorem ipsum, regex testing, cron parsing, and Kubernetes YAML validation.
Practical utilities, no lead capture
AI Automation ROI Calculator
Estimate annual savings, payback period, and first-year ROI for an AI document or workflow automation build.
Open toolStaff Augmentation Cost Calculator
Compare the fully loaded monthly and annual cost of U.S. onshore, nearshore, and offshore developers against an in-house hire.
Open toolSoftware Project Cost Estimator
Estimate a realistic budget and timeline for a custom software build based on scope, complexity, and team size.
Open toolJSON ↔ YAML Converter
Instantly convert between JSON and YAML in the browser. No data leaves your device.
Open toolRegex Tester
Test JavaScript regular expressions, flags, capture groups, named groups, and replacement output privately.
Open toolCron Parser
Explain five-field cron expressions, validate ranges and steps, and preview upcoming run times.
Open toolKubernetes YAML Validator
Check manifests for YAML parse errors, missing required fields, weak image tags, and common K8s mistakes.
Open toolBase64 Encoder & Decoder
Encode text to Base64 or decode it back. Supports standard and URL-safe variants — safe for tokens and keys.
Open toolURL Encoder & Decoder
Percent-encode and decode query parameters, paths, and fragments — encodeURI and encodeURIComponent.
Open toolJWT Decoder
Inspect the header, payload, and claims of any JSON Web Token. Runs locally — safe for production tokens.
Open toolUUID Generator
Generate cryptographically secure UUID v4 (random) or v7 (time-ordered) identifiers in bulk.
Open toolHash Generator
Compute MD5, SHA-1, SHA-256, and SHA-512 hashes of any text using the Web Crypto API.
Open toolUnix Timestamp Converter
Convert between epoch time (seconds or ms) and human-readable dates in UTC and your local timezone.
Open toolPassword Generator
Cryptographically secure random passwords and passphrases with entropy scoring.
Open toolMarkdown to HTML Converter
Convert Markdown to HTML with a live preview. Supports headings, lists, code, links, and images.
Open toolColor Converter
Convert between HEX, RGB, and HSL, with a live preview and WCAG AA/AAA contrast ratios.
Open toolSQL Formatter
Beautify SQL queries with consistent indentation and uppercased keywords — Postgres, MySQL, BigQuery, Snowflake.
Open toolCase Converter
Convert text between camelCase, PascalCase, snake_case, SCREAMING_SNAKE_CASE, kebab-case, and Title Case.
Open toolLorem Ipsum Generator
Generate placeholder paragraphs, sentences, or words for mockups and prototypes.
Open toolRelated pages
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