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JSON and API debuggingFormat JSON, validate payloads, inspect JWTs, convert cURL snippets, and generate request headers.PDF document cleanupMerge, split, rotate, reorder, watermark, number, and delete PDF pages without uploading files.Image optimizationCompress, resize, convert, crop, rotate, watermark, and prepare images for web or social posts.Encoding and text transformsHandle Base64, URL, Unicode, hex, HTML entities, line cleanup, sorting, counters, and case conversion.Color and CSS utilitiesConvert colors, build palettes, generate gradients, and calculate CSS clamp values for responsive UI work.Subtitles and writingShift subtitle timing, convert SRT/VTT, merge bilingual subtitles, generate READMEs, and clean Markdown.
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Unix Timestamp Seconds vs MillisecondsLearn how to identify 10-digit Unix seconds, 13-digit Unix milliseconds, UTC ISO output, and common timestamp conversion mistakes.JSON Escape vs JSON.stringifyUnderstand the difference between escaping JSON string content, formatting a JSON document, and using JSON.stringify in JavaScript.Base64 Is Encoding, Not EncryptionLearn what Base64 does, when to use it, why it does not protect secrets, and how to decode Base64 safely for debugging.URL Encoding vs Percent EncodingUnderstand reserved URL characters, percent-encoded bytes, plus signs, query strings, and common double-encoding mistakes.Image Compression: WebP vs JPEG vs PNGChoose WebP, JPEG, or PNG output for web images, screenshots, transparency, and file-size savings.Line Sorter: Alphabetize, Deduplicate, and Sort TextLearn how to sort lines alphabetically, numerically, or naturally, remove duplicates safely, and prepare clean lists for spreadsheets, docs, and code review.Hex Encoding for Text, Bytes, and DebuggingUnderstand when hexadecimal encoding is useful, how UTF-8 text becomes byte pairs, and what to check before decoding hex strings.JSON Formatter vs Validator for API DebuggingLearn when to pretty-print JSON, when to validate syntax, and how to debug API payloads without changing the data.HEX, RGB, and HSL Color ConversionLearn how HEX, RGB, and HSL describe the same color, when designers and developers use each format, and how to avoid alpha and shorthand mistakes.Merge and Split PDF Files in Browser-Local WorkflowsLearn when to merge PDFs, when to split page ranges, and how to keep page order, file size, and privacy in mind.Text Case Conversion for Titles, Slugs, and CleanupLearn when to use title case, sentence case, uppercase, lowercase, camelCase, kebab-case, and slug-style text cleanup.Markdown TOC and Documentation Cleanup WorkflowsLearn how to generate Markdown tables of contents, prepare heading structure, and connect Markdown output to HTML, README, and document workflows.CSV to Markdown Table CleanupLearn how to prepare CSV rows for Markdown tables, avoid delimiter mistakes, and choose between CSV, JSON, and Markdown table formats.Regex Tester Workflow for Pattern DebuggingLearn how to test regular expressions against sample text, debug anchors and groups, and avoid over-matching during cleanup tasks.QR Code and Barcode Content SharingLearn when to use QR codes, when to use barcodes, and how to prepare links, labels, and print assets for reliable scanning.Unicode Escape and HTML Entity EncodingLearn when to use Unicode escapes, HTML entities, and width conversion for text that must survive code, HTML, JSON, and documentation contexts.SQL Formatter vs SQL Minifier WorkflowsLearn when to format SQL for review, when to minify SQL for transport, and how to keep query meaning stable while changing whitespace.JSON, YAML, XML, Schema, and Diff ConversionLearn how to choose between JSON, YAML, XML, JSON Schema, and JSON diff tools when moving structured data between systems.Image Crop, Resize, Rotate, Convert, and Data URL WorkflowsLearn how to prepare web images with crop, resize, rotation, format conversion, and Data URL output without uploading files by default.API Request Conversion, Headers, and Client DebuggingLearn how to convert cURL commands into client snippets, inspect headers, format GraphQL, and read user-agent strings during API debugging.UUIDs, Passwords, and Random Identifier WorkflowsLearn when to generate UUIDs, when to generate passwords, and why identifiers, random tokens, hashes, and secrets solve different problems.CSS Gradients, Clamp Sizes, and SVG Asset CleanupLearn how to prepare gradients, clamp-based responsive values, SVG optimization, and SVG-to-PNG exports for front-end UI work.JSONPath and XML Inspection WorkflowsLearn how to inspect nested JSON with JSONPath, format XML for review, and convert XML to JSON only after understanding the source structure.PDF Page Rotation, Deletion, Watermarks, and Page NumbersLearn how to finish PDF page sets with rotation, deletion, page numbering, watermarking, and image-to-PDF conversion.Subtitle and Caption Timing WorkflowsLearn how to convert SRT to VTT, shift subtitle timing, merge bilingual captions, and count caption text before publishing.DOCX, Markdown, Resume, and Document Export WorkflowsLearn how to move between DOCX and Markdown, prepare resume content, and choose the right export path for docs, websites, and applications.Social Images, Favicons, Watermarks, and Sharing AssetsLearn how to prepare social preview images, favicons, watermarked assets, Markdown images, and 9-grid image splits for publishing workflows.