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JWT Decoder
Decode JWT header and payload locally without verifying the signature.
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A compact developer collection for everyday code and data tasks: JSON formatting, URL/Base64 conversion, UUIDs, timestamps, regex checks, colors, gradients, and lightweight snippet cleanup.
A polished starting set from this collection.
Decode JWT header and payload locally without verifying the signature.
Generate responsive CSS clamp() values for fluid font sizes.
Generate CSS flexbox layout snippets with live preview controls.
Generate simple CSS grid templates with columns, rows, gap, and preview.
Formatters, encoders, generators, color helpers, timestamps, regex, and snippet utilities.
Pick a color and convert HEX, RGB, and HSL values.
Generate common favicon PNG sizes and copy a simple HTML snippet.
Create CSS linear gradients with live preview.
Compress JPG, PNG, and WebP images locally with quality and size controls.
Convert images to JPG, PNG, or WebP when your browser supports the format.
Lightly format or minify JavaScript snippets.
Format, minify, and validate JSON with clean error messages.
Generate strong local passwords with length and character options.
Generate quick clean questions one by one or in lists.
Clean URL/path lists and generate text or simple XML sitemap output.
Generate safe, clean truth or dare prompts.
Convert length, weight, temperature, and time units.
Generate one or many browser-safe UUIDs.
Generate safe Antakshari letters, themes, and challenge prompts.
Encode plain text to Base64 or decode Base64 back to text.
Validate canonical URLs and generate a canonical link tag.
Check foreground and background color contrast against WCAG AA and AAA targets.
Generate simple charades prompts by category.
Create a custom formula sheet with short samples, notes, copy, and Markdown download.
Convert an image to a Base64 data URL locally in your browser.
Generate placeholder words, sentences, or paragraphs.
Test regular expressions and list matches safely.
Convert words and phrases into clean hashtags.
Convert Unix timestamps to dates and dates back to Unix time.
Encode or decode URL-safe strings instantly.
Generate safe would-you-rather questions.
Generate responsive CSS clamp() values for fluid font sizes.
Decode JWT header and payload locally without verifying the signature.
Generate title, description, canonical, Open Graph, and Twitter meta tags.
Generate a simple balanced revision timetable from topics, days, and hours.
Generate lightweight JSON-LD for WebSite, Article, FAQ, Breadcrumb, and LocalBusiness basics.
Convert a date and time across common time zones using browser Intl data.
Create CSS box-shadow values with offset, blur, spread, color, opacity, and inset controls.
Format or minify small CSS snippets.
Generate simple CSS grid templates with columns, rows, gap, and preview.
Generate safe writing, study, creativity, reflection, and productivity prompts.
Generate CSS flexbox layout snippets with live preview controls.
Create alternate language hreflang tags with x-default support.
Encode and decode HTML entities for snippets, text, and safe display.
Format or minify small HTML snippets without a heavy dependency.
Lightly remove comments and whitespace from JavaScript snippets.
Create a QR code from text or a URL and download it as PNG.
Generate one or many random numbers within a range with duplicate control.
Generate a simple study plan with learning, revision, and practice slots.
Generate non-AI title ideas from useful templates and show title length.
A compact developer collection for everyday code and data tasks: JSON formatting, URL/Base64 conversion, UUIDs, timestamps, regex checks, colors, gradients, and lightweight snippet cleanup.
No. These tools are designed for local browser use unless a page clearly says otherwise.
Some formatters are intentionally lightweight and best for quick snippets.