Calculate pagination parameters including page count, offset values, and next/previous page navigation for any API.
Analyze JSON payload size, structure, nesting depth, and key count for optimizing API request and response bodies.
Calculate rate limits, burst capacities, and throttling thresholds for API gateway configurations. Plan your traffic management strategy.
Calculate rate limit windows, burst allowances, and retry intervals. Design effective rate limiting for your API endpoints.
Analyzes your writing with real-time word count, sentence count, syllable count, paragraphs, and advanced readability metrics — Flesch-Kincaid Reading Ease, Grade Level, estimated speaking time, and keyword density. Essential for writers, students, and SEO professionals optimizing content for readability.
Add professional headers and footers to every page of your PDF. Supports text, page numbers ({{page}}/{{total}}), dates, and custom alignment. Perfect for reports and official documents.
API Pagination Calculator lets you calculate pagination parameters including page count, offset values, and next/previous page navigation for any API.. Everything runs inside your browser — nothing is uploaded to a server. It works on any device with a modern web browser.
Calculate pagination parameters including page count, offset values, and next/previous page navigation for any API. It's ideal for developers, designers, and anyone who needs to calculate pagination parameters including page count, offset values, and next/previous page navigation for any api without installing software or sending data to external servers.
Direct text entry, file upload, or URL-based input — depending on the tool. All numeric values are entered through input fields with real-time updates.
Yes. After the initial page load, API Pagination Calculator runs entirely on your device with no internet connection needed. All processing is done locally.
Tools cover JavaScript, CSS, HTML, SQL, Python, JSON, XML, CSV, and more. Check individual tool descriptions for specifics.
No. All code processing — formatting, minification, conversion, hashing — runs locally in your browser.
Yes. Since processing is local, performance depends on your device. Most operations handle large files without issue.
Yes. SQL uses sql-formatter, JSON uses native JSON.parse, and other formatters follow widely adopted formatting rules.
Yes. All developer tools work fully offline after the initial page load.
Time Converter
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Diff Checker
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Regex Tester
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JSON Formatter
Pretty-prints raw JSON with configurable indent width, key sorting, and bracket collapsing options while flagging syntax errors with exact.
JS Minifier
Strips comments, whitespace, and shortens local variable names in JavaScript source without altering execution semantics.
Base64 Encode/Decode
Encodes text or small files into Base64 strings and decodes them back with automatic MIME-type detection for binary safety.