Small tasks, done fast.

JSON Formatter

Format compact JSON with indentation and clear parse feedback, directly in your browser.

JSON Validator

Check whether a JSON document parses and see the shape of its root value without uploading it.

JSON Minifier

Remove formatting whitespace from valid JSON while keeping its parsed values intact.

JSON to CSV

Turn a small array of flat JSON objects into a downloadable CSV table in your browser.

CSV to JSON

Convert a CSV table with a header row into structured JSON without sending rows to a server.

Base64 Encoder

Encode UTF-8 text as Base64 locally for API tests and development workflows.

Base64 Decoder

Decode Base64 into readable UTF-8 text in the browser, with invalid-data feedback.

URL Encoder

Percent-encode a URL parameter value so special characters can travel safely in a query string.

URL Decoder

Decode percent-encoded URL text and spot malformed escape sequences before using them.

HTML Encoder

Escape markup characters so text can be inserted into HTML source as text rather than code.

HTML Decoder

Turn common named and numeric HTML entities back into readable text locally.

SHA-256 Hash Generator

Calculate a SHA-256 digest of UTF-8 text with the browser's native crypto API.

UUID Generator

Generate a random UUID v4 in the browser using the device's cryptographic random source.

Regex Tester

Test a JavaScript regular expression against sample text and inspect bounded matches.

Text Diff Checker

Compare two small blocks of text line by line and see additions and removals.

Timestamp Converter

Convert a Unix timestamp or date string into UTC and local browser time.

Color Converter

Convert a hexadecimal CSS color into equivalent RGB and HSL values for your stylesheets.

Word Counter

Count words, characters, sentences, and estimated reading time for a draft.

Character Counter

Measure characters, characters without spaces, lines, and UTF-8 bytes in your text.

Readability Checker

Estimate reading ease, sentence length, and long-word frequency for English prose.

Case Converter

Change text to upper, lower, title, or sentence case with one clear command.

URL Slug Generator

Create a lowercase, hyphenated URL slug from a page title or topic.

Text Cleaner

Trim stray spaces and collapse repeated blank lines in copied notes or drafts.

Line Sorter

Sort a list of lines alphabetically without sending its contents to a service.

Duplicate Line Remover

Keep the first occurrence of each line while preserving the original order.

Find and Replace

Replace literal text across a draft without uploading or changing the source file.

Markdown to HTML

Convert a small Markdown draft into escaped HTML for inspection and reuse.

HTML to Text

Extract readable text from pasted HTML while discarding tags, scripts, and styles.

Lorem Ipsum Generator

Generate a few placeholder paragraphs for testing a layout before real copy exists.

Keyword Frequency Checker

See the most frequent words in a draft as a diagnostic, without prescribing keyword quotas.

Meta Tag Generator

Generate title, description, canonical, and social metadata for a page from a small input.

Robots.txt Generator

Create a small permissive robots.txt file with an optional sitemap address.

XML Sitemap Generator

Build a valid XML sitemap from a bounded list of absolute page URLs.

Canonical URL Cleaner

Remove tracking parameters and fragments from a URL to review a possible canonical address.

Hreflang Tag Generator

Create alternate-language link tags from locale and URL pairs for a multilingual page.

UTM Campaign URL Builder

Add source, medium, and campaign parameters to a link for campaign attribution.

Title Length Checker

Review a page title's character length and plain-text wording before publishing.

Meta Description Checker

Review description length and wording without treating a character target as a ranking rule.

Social Card Tag Generator

Draft Open Graph and X card metadata for a link, including a selected image URL.

JSON-LD Generator

Draft basic Organization or SoftwareApplication structured data for review.

Pasted HTML SEO Audit

Inspect pasted HTML for title, description, headings, canonical, and index directives locally.

AGENTS.md Structure Checker

Review an AGENTS.md file for readable sections, scope cues, and oversized instructions.

MCP Configuration Validator

Check a common mcpServers JSON shape for missing commands, URLs, and malformed argument lists.

Prompt Token Estimator

Get a rough token and context-size estimate for a prompt without transmitting its content.

Cron Expression Explainer

Explain the five fields of a standard cron expression and validate common numeric ranges.