File Converter Tools

Browser-based converter tools for Base64, JSON, YAML, XML, Markdown, HTML, ICO generation, and more — no desktop software needed.

• ICO Generator — Create .ico favicon files from any image — select sizes from 16×16 to 256×256.
• Image to Base64 — Encode any image to a Base64 data URI string — embed images directly in HTML, CSS, or JSON.
• Base64 to Image — Decode Base64 data URI strings back to downloadable images — PNG, JPG, WebP.
• JSON to CSV — Convert JSON arrays to CSV format — download as .csv file, free and instant.
• CSV to JSON — Convert CSV data to JSON format — parse headers and rows into clean JSON arrays.
• Markdown to HTML — Convert Markdown to clean HTML — preview and download styled HTML output.
• Markdown Visualizer — Live Markdown editor with instant preview — write and preview Markdown side by side.
• AVIF to JPG — Convert AVIF images to JPG format online. Fast, private, browser-based conversion with no upload required.
• AVIF to PNG — Convert AVIF images to PNG format online. Fast, private, browser-based conversion with no upload required.
• BMP to JPG — Convert BMP images to JPG format online. Fast, private, browser-based conversion with no upload required.
• BMP to PNG — Convert BMP images to PNG format online. Fast, private, browser-based conversion with no upload required.
• HEIC to JPG — Convert HEIC images to JPG format online. Fast, private, browser-based conversion with no upload required.
• HEIC to PNG — Convert HEIC images to PNG format online. Fast, private, browser-based conversion with no upload required.
• HEIC to WebP — Convert HEIC images to WebP format online. Fast, private, browser-based conversion with no upload required.
• JPG to AVIF — Convert JPG images to AVIF format online. Fast, private, browser-based conversion with no upload required.
• JPG to PNG — Convert JPG images to PNG format online. Fast, private, browser-based conversion with no upload required.
• JPG to WebP — Convert JPG images to WebP format online. Fast, private, browser-based conversion with no upload required.
• PNG to AVIF — Convert PNG images to AVIF format online. Fast, private, browser-based conversion with no upload required.
• PNG to JPG — Convert PNG images to JPG format online. Fast, private, browser-based conversion with no upload required.
• PNG to WebP — Convert PNG images to WebP format online. Fast, private, browser-based conversion with no upload required.
• SVG to JPG — Convert SVG images to JPG format online. Fast, private, browser-based conversion with no upload required.
• SVG to PNG — Convert SVG images to PNG format online. Fast, private, browser-based conversion with no upload required.
• TIFF to JPG — Convert TIFF images to JPG format online. Fast, private, browser-based conversion with no upload required.
• TIFF to PNG — Convert TIFF images to PNG format online. Fast, private, browser-based conversion with no upload required.
• WebP to AVIF — Convert WebP images to AVIF format online. Fast, private, browser-based conversion with no upload required.
• WebP to JPG — Convert WebP images to JPG format online. Fast, private, browser-based conversion with no upload required.
• WebP to PNG — Convert WebP images to PNG format online. Fast, private, browser-based conversion with no upload required.
• YAML to JSON — Convert YAML to JSON online — parse YAML configuration and data files into JSON format with browser-based.
• JSON to YAML — Convert JSON to YAML online — transform API responses and data files into human-readable YAML format.
• XML to JSON — Convert XML to JSON online — parse XML documents into structured JSON for APIs, scripts, and data pipelines.
• JSON to XML — Convert JSON to XML online — transform structured data into XML format for SOAP APIs, legacy systems, and.
• HTML to Markdown — Convert HTML to Markdown online — extract clean Markdown from web pages, emails, and rich text for.
• Password Generator — Generate cryptographically secure passwords with Web Crypto API — custom length, charset, passphrase mode, zxcvbn strength meter.
• JSON Formatter — Validate, prettify, and minify JSON with JSON5 support, collapsible tree view, and JSONPath queries — precise error line detection.
• HEX to RGB Converter — Convert between HEX, RGB, HSL, OKLCH (CSS Color Level 4), OKLAB, LAB, LCH, CMYK with Display-P3 and WCAG contrast.
• Regex Tester — Live regex tester with ES2024 v flag (unicode-sets), d flag match indices, named capture groups, lookbehind, and pattern library.
• UUID Generator — Generate UUID v7 (RFC 9562, 2024 time-ordered), v4 random, v1, ULID sortable, and NanoID identifiers with Web Crypto API.
• Hash Generator — Generate SHA-256, SHA-384, SHA-512, SHA-1, MD5 and HMAC hashes with the Web Crypto SubtleCrypto API and streaming file support.
• Timestamp Converter — Convert Unix epoch, ISO 8601, RFC 2822 dates across every IANA timezone with Temporal API and Intl.RelativeTimeFormat support.
• URL Encoder / Decoder — Encode and decode URLs with RFC 3986 per-component rules, URL.canParse validation, and URLSearchParams table.
• JWT Decoder & Verifier — Decode and cryptographically verify JWT tokens (RFC 7519) with SubtleCrypto, supporting HS, RS, PS, and ES signatures via PEM/JWK.
• Base64 Encoder / Decoder — Encode and decode text or files in standard Base64 (RFC 4648 §4) or URL-safe Base64URL (§5) with full UTF-8 / emoji support.
• Diff Viewer / Text Compare — Compare two texts with the Myers O(ND) diff algorithm. Line, word, and character granularity with unified or side-by-side output.
• Lorem Ipsum Generator — Generate placeholder text in 6 flavors: classic Cicero Lorem, Bacon, Cupcake, Corporate Jargon, Hipster, and Emoji Ipsum.
• Case Converter — Convert text between camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE, Title Case with Unicode-safe Turkish İ/ı and German ß handling.
• Slugify — Generate URL-safe slugs with Unicode NFKD normalization and multi-script transliteration (Cyrillic, Greek, Turkish, German).
• Text Counter & Readability — Count words, characters, emoji-accurate graphemes, sentences with Flesch Reading Ease, Flesch-Kincaid, SMOG, Gunning Fog, and ARI metrics.
• Word Counter — Count words, characters, sentences, paragraphs with live readability scores (Flesch Reading Ease, Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, ARI) and keyword density.
• File Type Detector — Detect a file's true type from its content using Google Magika (214 classes). Identifies source code, documents, images, archives, and executables entirely in-browser via WASM.
• SQL Formatter — Format SQL with dialect-aware pretty-printing for PostgreSQL, MySQL, SQLite, T-SQL, and PL/SQL. Custom indent and keyword casing.
• CSS Formatter & Minifier — Prettify or minify CSS with CSS Level 4 support (Container Queries, :has, Cascade Layers, Nesting). Comment-safe tokenizer.
• HTML Formatter — Format or minify HTML with DOMParser-based HTML5 parsing. Void element aware, preserves <pre>/<script>/<textarea> whitespace.
• XML Formatter & Validator — Format, validate, and minify XML with namespace-aware parsing, CDATA preservation, and XPath 1.0 queries.
• YAML Formatter & Validator — Format and validate YAML 1.2.2 for Kubernetes, GitHub Actions, CloudFormation, Docker Compose, and Ansible workflows.
• CSS Gradient Generator — Build linear, radial, conic, and mesh gradients with OKLCH interpolation (CSS Color Level 4). Live preview and Tailwind v4 export.
• Box Shadow Generator — Build multi-layer CSS box shadows with Material Design 3 elevation presets, inset mode, and light/dark preview.
• CSS Filter Generator — Build filter and backdrop-filter chains for frosted-glass effects, color adjustments, with auto -webkit- prefix.
• CSS clamp() Calculator — Generate fluid typography and spacing CSS with clamp() — no media queries, accessible rem output, multi-viewport preview.
• CSS Keyframes Builder — Build CSS @keyframes animations with easing curves, scroll-driven timelines, prefers-reduced-motion, and Tailwind v4 export.
• Sitemap Validator — Validate XML sitemaps against sitemaps.org 0.9, check hreflang bi-directional consistency, 50MB / 50k URL limits, and duplicates.
• Robots.txt Tester — Test robots.txt against RFC 9309 with per-URL allow/deny simulation for Googlebot, Bingbot, GPTBot, ClaudeBot, YandexBot.
• Schema / JSON-LD Validator — Validate JSON-LD structured data against Schema.org 28 (2024) with Rich Results eligibility for Article, Product, FAQ, HowTo, VideoObject.
• Meta Tag Analyzer — Analyze meta, Open Graph, Twitter Card, canonical, hreflang, robots, viewport, and theme-color with length checks and conflict detection.
• Open Graph Preview — Preview how any URL looks when shared on Facebook, Twitter/X, LinkedIn, Discord, Slack, WhatsApp, iMessage, and Telegram.
• Morse Code Translator — Translate text to Morse code with ITU-R M.1677 compliance, Web Audio tone playback at adjustable WPM, and visual flash mode.
• QR Code Customizer — Generate styled QR codes with logo overlay, brand colors, Reed-Solomon error correction (L/M/Q/H), and batch CSV export.
• Binary / Hex / Decimal Converter — Convert between bases with BigInt arbitrary precision, IEEE 754 float breakdown, and two's complement signed integers.
• Data URI Builder — Build RFC 2397 data: URIs for inline images, SVG, fonts, and CSS with base64 or percent-encoded output and ready snippets.
• JSONPath Tester — Test JSONPath queries live against JSON data with RFC 9535 (2024) and classic Goessner syntax, filters, and recursive descent.
• Favicon Pack Generator — Full PWA favicon pack from one source: multi-size ICO, Apple touch, Android, maskable, manifest.json, and HTML meta snippet.
• EXIF / Metadata Stripper — Remove EXIF, XMP, IPTC, ICC metadata from JPEG, PNG, WebP. Lossless for JPEG. Strips GPS and camera info.
• Aspect Ratio Calculator — GCD-simplified ratios, CSS aspect-ratio property, scale calculations, and 12 video/photo/print presets.
• Social Media Size Reference — 2026 specs for Instagram, Facebook, Twitter/X, LinkedIn, TikTok, YouTube, Pinterest, Snapchat — 30+ formats with copy-ready JSON/CSS.
• Image Comparison Slider — Before/after interactive slider with side-by-side and pixel-difference modes. Embeddable HTML snippet export.
• Cron Expression Builder — Build and parse cron expressions with next-10-run preview in any IANA timezone. 5-field Unix + 6-field Quartz/AWS EventBridge.
• Markdown Cheatsheet & Editor — Live split editor for CommonMark, GitHub Flavored Markdown, MDX, and Obsidian flavors with callouts and GFM tables.
• cURL to fetch / Code Converter — Convert cURL to JavaScript fetch, Python requests, Go net/http, Node axios, and PowerShell in one paste.
• HTTP Status Code Reference — Searchable RFC 9110 (2022) reference with usage guidance, fetch/cURL snippets, and http.cat thumbnails.
• .gitignore Generator — Composable .gitignore from 60+ GitHub-official templates for languages, frameworks, IDEs, and OSes.
• Unicode Inspector — Inspect codepoints, names, General_Category, Script, Block plus NFC/NFD/NFKC/NFKD normalization side-by-side.
• Punycode / IDN Converter — Convert IDN domains between Unicode and ASCII Punycode with IDNA 2008 + UTS #46 and homograph detection.
• Emoji Decoder — Decode emoji ZWJ sequences, skin tones, flags, keycaps with Unicode 16 codepoint names.
• Language Detector — Detect language via Unicode script analysis + trigram fingerprints, 100+ languages, no model download.
• String Locale Tester — Test Intl.Collator sort and toLocaleLowerCase/Upper across locales (Turkish, German, Greek, etc.).

Common Workflows

Convert structured data and markup formats, move between JSON, YAML, XML, Markdown, HTML, CSV, Base64, and image compatibility flows, and keep everything private on device without desktop conversion software.

Explore More Collections

• AI Tools — AI-powered editing, cleanup, and visual analysis.
• Image Tools — Fast browser-side image editing, formatting, and export workflows.
• PDF Tools — Merge, convert, and export PDFs without uploading private files.
• Converters — Format-specific conversion flows for images, docs, and structured data.