Step 1
Select the code or payload type
Start from the exact thing you need to debug: code snippets, JSON, JWT, Base64, regex, UUIDs, timestamps, text differences, or metadata.
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Developer Tools
Essential tools for developers. Build, debug and ship faster.
All Developer Tools
29 toolsJSON FormatterFormat, validate, and prettify JSON.Regex TesterTest regex patterns with live matches.Hash GeneratorGenerate SHA-256 and MD5 hashes.JWT DecoderDecode JWT header and payload.Base64 Encode/DecodeEncode or decode Base64 strings.UUID GeneratorGenerate UUIDs for IDs and testing.Password GeneratorGenerate strong passwords with presets.Text Diff CheckerCompare two texts and highlight differences.Meta Tag GeneratorGenerate SEO meta and social tags.Create ZipCreate ZIP archives from multiple files.Epoch ConverterConvert Unix timestamps and dates.ToolerWork Code StudioBrowser IDE for Python, JavaScript, TypeScript, React, SQL, HTML, CSS, JSON, Markdown, and data tools.
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How to use these developer tools
Step 2
Paste a focused sample
Use a small API response, token, pattern, string, or snippet so the tool result is fast and easy to verify.
Step 3
Move to the next QA check
After formatting or validating data, use related tools for metadata, SEO checks, hashing, zipping, or text cleanup.
Why this developer toolbox helps
High-repeat utility intent
Developer searches often come from immediate debugging needs, so clear tool links and task labels help users find the right page quickly.
Supports SEO and shipping workflows
Meta tag, JSON, text diff, and SEO links make this category useful for frontend QA, page audits, and release checks.
No-install debugging
Small dev tasks should be quick. Browser tools reduce context switching when a user only needs one format, decode, or validation pass.
Better internal discovery
The hub connects closely related developer tasks so crawlers and users can move between payload, metadata, and page-quality tools.
Developer tools FAQ
Which developer tool should I open first?
Open JSON Formatter for API responses, Base64 for encoded payloads, Regex Tester for pattern checks, JWT Decoder for tokens, UUID Generator for IDs, and Meta Tag Generator for SEO snippets.
Are these tools useful for frontend developers?
Yes. The dev category supports everyday frontend work like checking JSON, comparing text, creating meta tags, testing regex, decoding JWT payloads, and formatting data from APIs.
Do developer tools run in the browser?
The category is built around fast browser utilities, so common formatting, validation, encoding, and generation workflows do not require installing a separate desktop app.
Which dev tools help SEO pages?
Meta Tag Generator, JSON Formatter, Text Diff, SEO Analyzer, and related text tools help review metadata, structured data, HTML snippets, and page cleanup before publishing.
Related developer and SEO tools
ToolerWork Code Studio
Open a browser IDE for Python, JavaScript, TypeScript, React, SQL, HTML, CSS, JSON, Markdown, YAML, XML, CSV, and SCSS.
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JSON Formatter
Format, inspect, and clean JSON from APIs, config files, and debugging sessions.
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Base64 Encode Decode
Encode and decode Base64 strings for payloads, auth checks, and quick debugging.
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Regex Tester
Test patterns against sample text before using them in code or forms.
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JWT Decoder
Inspect JWT header and payload content while debugging auth flows.
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Meta Tag Generator
Draft titles, descriptions, Open Graph, and Twitter metadata for pages.
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SEO Analyzer
Check page HTML for SEO issues after creating or editing metadata.
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