Base64 Encode/Decode
Unicode-safe Base64 encode/decode for text and files locally.
Developer tools
Developer tools on wowTools cover everyday coding chores—encoding, hashing, regex checks, diffs, timestamps, and generators—without leaving the browser. Paste input, get an instant local result, and copy or download when you are done. Nothing here requires an account, and tools that handle secrets keep on-device history off until you opt in.
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Base64 Encode/Decode
Unicode-safe Base64 encode/decode for text and files locally.
Cron Explainer
Turn cron expressions into readable schedules.
Query String Parser
Parse and build URL query strings safely, client-side.
Regex Tester
Test regex patterns with flags, highlights, and safe timeout protection.
URL Encode/Decode
URL percent-encoding with component and URI modes locally.
Featured guides
Learning links
- What is JSON?Learn JSON syntax and when to format, validate, or convert.
- What is JWT?Inspect token structure carefully—decoding is not verification.
- What is Base64?Encoding versus encryption, with local encode/decode.
- JSON ToolkitCurated formatter, validator, minifier, and YAML tools.
- Free Developer ToolsCurated landing for everyday browser developer utilities.
Frequently asked questions
- What developer tools are available on wowTools?
- The developer category includes encoding, hashing, JWT decoding, regex testing, diffs, cron explainers, timestamps, and related generators. Browse popular and newest tools on this page, or jump into JSON, security, text, and random categories for specialized helpers.
- Do wowTools developer tools upload my code or secrets?
- No. These utilities run in your browser with Web APIs such as Web Crypto and TextEncoder. Sensitive tools like JWT Decoder and Password Generator keep history disabled until you explicitly opt in on this device.
- When should I use a developer tool versus an IDE plugin?
- Use these tools for quick, one-off tasks—formatting a payload, checking a hash, explaining a cron string—without opening a project. Prefer your IDE for large refactors, versioned workflows, and team-shared configurations.
- Are results safe to copy into production systems?
- Treat outputs as helpers, not audited security products. Double-check encodings, never paste production secrets into shared browsers, and verify JWT claims yourself—signature verification is not assumed unless a tool documents it.
- How do I find related tools quickly?
- Each tool page lists related utilities from the same category and tags. Category pages also surface popular and newest tools. Use site search (⌘K) to jump by keyword such as base64, uuid, or regex.