All free online tools

Convert JPG photos into lossless PNG files in seconds, right in your browser.

Turn large PNG images into small JPG files that are easy to share and upload.

Convert JPG photos to WebP for smaller, faster-loading images on your website.

Convert PNG images to much smaller WebP files while keeping transparency.

Convert WebP images from the web into JPG files that open in every program.

Convert WebP images into lossless, universally supported PNG files with transparency intact.

Convert iPhone photos (HEIC/HEIF) to JPG at full quality so they open on any device.

Convert iPhone HEIC photos into lossless PNG images for editing and design work.

Convert next-generation AVIF images to JPG so they open in any viewer.

Turn AVIF images into lossless PNG files that every editor can open, with transparency kept.

Convert JPG photos to AVIF, the format with the smallest file size for the web.

Convert PNG images to tiny AVIF files while keeping transparency.

Reduce the size of JPG, PNG, WebP and AVIF images without visible quality loss.

Resize photos by pixels, percentage or ready-made social media presets in seconds.

See the camera, lens, date and GPS location stored in your photos and remove it with one click.

Crop photos freely or to fixed ratios like 1:1, 4:5 and 16:9, right in your browser.

Rotate sideways or upside-down photos by 90° or 180° and flip them horizontally or vertically.

Add a text or logo watermark with adjustable position, opacity, size and angle.

Convert an image into Base64 text or a data URL ready for HTML, CSS or JSON.

Decode Base64 text or a data URL back into a viewable, downloadable image.

Convert SVG vector drawings and logos to transparent PNG at any resolution.

Convert SVG files to JPG with the background colour and resolution of your choice.

Fill the transparent background of PNG images with white or any colour you choose.

Pick the colour of any pixel in a photo or screenshot as HEX, RGB and HSL.

Extract an image's main colour palette automatically and copy the colours as HEX/RGB.

Create favicon.ico and PNG site icons from 16×16 up to 512×512 from your logo.

Resize images to the recommended sizes for Instagram, YouTube, TikTok, X, Facebook and LinkedIn.

Blur a photo with adjustable strength and a live preview, then save it as JPG, PNG or WebP.

Preview how an image looks with protanopia, deuteranopia, tritanopia or achromatopsia.

Read the DPI stored in JPG, PNG, WebP and BMP files and see the print size at 300, 150 and 72 DPI.

Check width, height, aspect ratio, megapixels and file size of one or many images at once.

Inspect an image's real format, colour type, bit depth, ICC profile, camera, date and GPS data.

Crop any image into a circle with a transparent background, perfect for profile pictures and avatars.

Round the corners of an image with an adjustable radius and a transparent background.

Add a coloured border around any image with optional inner padding and rounded corners.

Add solid or transparent space to any side of an image.

Put two or more images next to each other in one picture with spacing, alignment and background options.

Stack several images vertically into one tall image, perfect for screenshots and step-by-step guides.

Split an image into a 2×2, 3×3, 4×4 or custom grid and download the tiles individually or as a ZIP.

Pack several images into one sprite sheet PNG with CSS classes and JSON coordinates.

Turn a photo black and white with the luminosity, average or lightness method and adjustable intensity.

Adjust a photo's brightness, contrast, saturation and hue with live sliders and export it.

Pixelate the whole image or a selected area to censor faces, plates or personal data.

Compare two images with a before/after slider or highlight the pixels that differ.

Turn any part of a video into a smooth, optimised animated GIF.

Convert animated GIFs into MP4 videos that are 5–10× smaller and play everywhere.

Inspect a video's codec, resolution, FPS, bitrate, duration and audio track details.

Find a video's width, height, orientation, aspect ratio and resolution name such as 1080p or 4K.

Measure a video's frame rate (FPS) by playing a few seconds in your browser.

Find the exact length of one or many video and audio files, plus the total duration.

Calculate the average bitrate from a file size, or the file size from a bitrate.

Estimate video file size in MB and GB from duration, video bitrate and audio bitrate.

Find the aspect ratio of any size, or calculate the missing width or height for a ratio.

Convert between seconds and HH:MM:SS and build YouTube chapter lines for your description.

Extract a video's audio as MP3 at the bitrate you choose, from 128 to 320 kbps.

Extract a video's audio as uncompressed WAV for editing and production.

Extract AAC audio from a video, which sounds better than MP3 at the same bitrate.

Find an audio file's average kbps or estimate its size at 128, 192 or 320 kbps.

Combine several PDF files into one document in the order you choose, without quality loss.

Split a PDF into single pages, every N pages or custom page ranges.

Turn every PDF page into a high-quality JPG image at the resolution you choose.

Convert one or more JPG images into a single PDF with the page size and margins you choose.

Combine screenshots, scans and graphics into one tidy PDF document.

Pick only the pages you need from a PDF and save them as a new PDF file.

Rearrange a PDF's pages in any order, duplicate pages or leave some out.

Rotate all or selected PDF pages by 90, 180 or 270 degrees.

See the title, author, creating application, page count and dates stored in a PDF.

Remove author, title, software, dates and XMP metadata from a PDF before sharing it.

Convert subtitles between SRT, VTT, ASS, SSA and TXT while keeping the timing.

Remove styling tags, hearing-impaired notes and music symbols from subtitles.

Fix out-of-sync subtitles by shifting every timestamp forwards or backwards.

Count dialogue lines, words and characters in subtitle files, excluding timecodes.

Re-time subtitles for a different frame rate, for example from 23.976 to 25 fps.

Find subtitle lines longer than 42 characters or your own limit, with index and timestamp.

Merge several subtitle files into one, in sequence or with a custom offset.

Split a subtitle file into two parts at a time or cue number.

Extract only the dialogue from subtitle files as plain text, without timecodes or numbers.

Convert ASS/SSA subtitles to SRT with style codes cleaned up, so they play everywhere.

Fix garbled characters (ç, ? and so on) in subtitles and save the file as UTF-8.

Create custom QR codes for URLs, text, Wi-Fi, vCards, email and SMS, with colours and logo.

Scan QR codes from an image, a screenshot or your camera, right in your browser.

Create Code 128, EAN-13, UPC-A, EAN-8 and Code 39 barcodes with check digits; download PNG or SVG.

Create a QR code that connects phones to your Wi-Fi without typing the password.

Turn your contact details into a QR code for business cards that saves you to the phone's contacts.

Create a QR code that opens a new email with recipient, subject and message pre-filled.

Create a QR code that opens a text message to a phone number with a pre-written message.

Create a QR code that adds an event with title, time and location to the calendar when scanned.

Download the thumbnail of any YouTube video in every available resolution, including HD.

Count words, characters with and without spaces, sentences, paragraphs and reading time instantly.

Convert text to UPPER CASE, lower case, Title Case, camelCase, snake_case and more.

Remove repeated lines from a list in one click while keeping the original order.

Sort lines alphabetically (A–Z, Z–A), by length, or reverse the list.

Compare two texts and see added, removed and changed lines highlighted.

Trim lines and clean up extra spaces, tabs and empty lines.

Find and replace text with case sensitivity and regular expression support.

Reverse text character by character, reverse word order or reverse line order.

Translate text to Morse code and back (SOS → ... --- ...) and play it as audio.

See each character's Unicode code point, UTF-8 bytes, UTF-16 units and HTML entity.

Convert text to decimal, hex, binary or octal ASCII codes and back, with a searchable ASCII table.

Encode or decode text with the Caesar shift cipher and try all 25 shifts at once.

Apply ROT13, ROT47 or ROT13 with digit rotation; applying it twice restores the original.

Strip HTML tags and get clean plain text with line breaks preserved for paragraphs, lists and headings.

Number every line with your own start, step and separator, or remove existing line numbers.

Add the same text to the start or end of every line: quotes, commas, bullets or HTML tags.

Join lines into one text with any separator, or split text into lines at a separator.

Strip accents and special marks from text: é → e, ü → u, ç → c, ß → ss.

Count how often each character appears in a text, with percentages, a bar chart and CSV export.

See words, sentences, unique words, averages, reading and speaking time and the most frequent words.

Extract unique email addresses from any text; sort, filter by domain and copy them.

Calculate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files.

Pretty-print messy or minified JSON and find errors with line and column details.

Remove all unnecessary whitespace from JSON for smaller, faster-to-transfer data.

Convert a JSON array of objects into an Excel-friendly CSV with automatic column headers.

Convert CSV data into a JSON array of objects, using the header row as keys.

Indent XML documents for readability and check that they're well-formed.

Safely remove comments and extra whitespace between tags to shrink your HTML.

Shrink your CSS files by removing comments and unnecessary whitespace.

Safely strip comments and indentation from JavaScript for smaller files.

Encode or decode URLs and query parameters with percent-encoding.

Encode text to Base64 and decode it back with full UTF-8 support, including URL-safe Base64.

Decode a JWT's header and payload and see exp, iat and nbf as readable dates.

Convert Unix timestamps to dates and dates to timestamps, in seconds or milliseconds.

Search every HTTP status code by number, name and meaning: 200, 301, 404, 500 and more.

Find the MIME type of a file extension, or the extensions for a MIME type.

Test JavaScript regular expressions with live match and capture group highlighting.

Build cron schedules from presets and read a plain-English explanation of when they run.

Convert colours between HEX, RGB and HSL with a live preview; alpha is supported.

Convert YAML to formatted JSON with line-numbered errors, anchors and multi-document support.

Beautify SQL queries with consistent indentation, one column per line and optional upper-case keywords.

Generate C# classes or records from JSON with nested types, List<T>, nullable types and [JsonPropertyName].

Generate TypeScript interfaces or types from JSON, including nested objects, arrays, optional and null fields.

Generate null-safe Dart/Flutter model classes with fromJson and toJson from JSON.

Generate Java POJO classes from JSON with getters, setters and optional Jackson @JsonProperty annotations.

Generate typed Python dataclasses from JSON with Optional fields and a from_dict() helper.

Encode special characters as HTML entities (< → &lt;) or decode entities back to text.

Convert text to \uXXXX, \u{…}, Python, CSS, HTML or U+ escape sequences and back.

Design linear and radial CSS gradients with multiple colour stops and a live preview.

Create CSS box-shadow values with offset, blur, spread, colour and inset controls.

Design rounded corners visually; set all four corners together or individually.

Create title, description, robots, canonical and viewport meta tags with correct escaping.

Create Open Graph tags that control how your links look on Facebook, LinkedIn and WhatsApp.

Create a robots.txt file with Allow, Disallow and sitemap rules for search engine bots.

Create a valid sitemap.xml from a list of URLs to submit to search engines.

Add UTM campaign parameters to any URL with correct encoding for analytics tracking.

Create CSP, HSTS, Referrer-Policy, Permissions-Policy and other headers for Nginx, Apache, IIS or Netlify.

Create the right Cache-Control header with presets for static files, HTML pages and private data.

Create Nginx 301/302 page redirects plus HTTP → HTTPS and www / non-www rules.

Create Apache .htaccess page-level 301/302 rules plus HTTP → HTTPS and www / non-www redirects.

Measure your page title's characters and pixel width and see whether Google will cut it off.

Check whether your meta description is too short, ideal or long enough to be truncated.

Find the most frequent words and two-word phrases in a text with their percentages.

Preview how your page might look in Google search results on desktop and mobile.

Preview how a link will look when shared on Facebook, LinkedIn and WhatsApp.

Preview X (Twitter) summary and large image cards and get the twitter: meta tags.

Normalise a URL and create the rel="canonical" tag that prevents duplicate content.

Create FAQPage JSON-LD structured data from your questions and answers.

Create Article, BlogPosting or NewsArticle JSON-LD with author, publisher, images and dates.

Create BreadcrumbList JSON-LD with automatic positions for your page hierarchy.

Create hreflang link tags, sitemap entries or HTTP headers for multilingual and multi-regional sites.

See a page's H1–H6 hierarchy as a tree and find missing H1s, multiple H1s and skipped levels.

Extract every URL from text or HTML, remove duplicates, resolve relative links and filter internal or external.

Turn titles into clean, SEO-friendly URL slugs by converting accented characters.

Generate any number of placeholder words, sentences or paragraphs for designs and mock-ups.

Generate strong, unpredictable random passwords with the Web Crypto API.

Generate random UUID v4 (GUID) identifiers in bulk for database keys and IDs.

Create a vCard contact file with name, company, phone, email, website and address for any phone.

Generate synthetic test records with names, emails, phones, companies and addresses as JSON, CSV or SQL.

Create a CSV file with your own columns and up to 10,000 rows of synthetic data.

Generate as many sample JSON records as you need from a template with placeholders like {{name}} and {{int:1:100}}.

Generate cryptographically secure random tokens in hex, Base64 or Base64URL for API keys and secrets.

Generate sortable, URL-safe, 26-character unique ULIDs and decode their timestamps.

Open CSV and TSV files as a searchable, sortable table without Excel; large files stay smooth.

Sort CSV rows by one or two columns as text, numbers or dates, ascending or descending.

Remove duplicate rows from a CSV by comparing whole rows or only the columns you choose.

Keep only the CSV columns you need and download a smaller file.

Delete unwanted columns from a CSV file in seconds, in your browser.

Combine several CSV files into one, matching columns by header name or position.

Split a large CSV into smaller files by row count or column value and download them as a ZIP.

Convert CSV or pasted spreadsheet data into an aligned Markdown table for READMEs and docs.

Convert tab-separated values to comma CSV (or semicolon, pipe or TSV) with correct quoting.

Turn tables in pasted HTML into clean CSV, respecting colspan and rowspan.

Convert CSV into clean, escaped HTML table markup with optional thead and CSS class.

Calculate SHA-1, SHA-256, SHA-384 and SHA-512 checksums of files and compare with the expected hash.

Rename many files at once with prefix, suffix, find & replace, numbering and case options.

Create a ZIP archive from files and folders, with optional compression, right in your browser.

Open a ZIP in your browser, browse its contents and extract selected or all files.

Identify a file's real type from its magic bytes and see whether the extension matches.

Get the network, broadcast, host range, subnet and wildcard mask for any IPv4 address and prefix.

Convert a CIDR prefix to a subnet mask, count addresses and split a network into smaller blocks.

Count the addresses between two IPv4 addresses and turn the range into the smallest CIDR list.

Convert IPv4 addresses to dotted binary and back, with hex and 32-bit integer forms.

Bulk-convert MAC addresses between colon, hyphen, Cisco dot and no-separator formats.

Look up common TCP and UDP port numbers by number or service name, e.g. 22 SSH, 443 HTTPS.

Convert numbers to Roman numerals and back (2026 → MMXXVI); invalid numerals are flagged instantly.

Generate one or thousands of random numbers in a range, with or without repeats, sorted or shuffled.

Calculate the percentage increase or decrease between two values; e.g. 100 → 120 = 20% increase.

Paste a list of numbers and get count, sum, mean, median, mode, min, max and range instantly.

Find the sample or population standard deviation and variance of a list of numbers.

Convert between binary, octal, decimal, hexadecimal and any base from 2 to 36; e.g. 255 = FF.

Calculate AND, OR, XOR, NOT and shifts on 8, 16, 32 or 64-bit values with decimal, hex and binary output.

Check whether a number is prime, see its prime factors and find the next and previous primes.

Convert a date and time between two time zones; UTC offsets and daylight saving time are handled automatically.

Count the days between two dates and see them as weeks, months, years, hours and weekdays.

Add or subtract days, weeks, months and years to a date and see the result and weekday.

Count working days between two dates or add working days to a date, skipping weekends and your holidays.

Find the ISO 8601 week number of any date, or the start and end dates of a given week.

Create a downloadable .ics calendar event with title, time, location, description and reminder.

Generate harmonious 5–8 colour palettes: random, complementary, analogous, monochromatic or triadic.

Generate random colours as HEX, RGB and HSL; one at a time or up to 50, in pastel, vivid or dark styles.

Convert pixels to rem and em (and back) based on your root and parent font sizes.

Check the contrast ratio of text and background colours against WCAG AA and AAA.

Create a fluid CSS clamp() value that scales between a minimum and maximum size with the viewport width.

Divide a length by the golden ratio (φ ≈ 1.618) and build a φ-based scale for layout and typography.

Turn one base colour into a Tailwind-style 50–950 shade scale with CSS variables and config output.

Check a button or link size against WCAG 2.2, Apple HIG and Material Design touch target guidance.

Convert Markdown into clean HTML with GitHub-style tables, task lists and a safe live preview.

Write Markdown on the left and see the formatted result live on the right; ideal for READMEs.

Convert HTML into readable Markdown with headings, lists, links, images, code blocks and tables.

Build Markdown tables in a spreadsheet-like editor with column alignment, then copy the result.

Realign messy Markdown tables into evenly padded columns; the rest of the text is kept.

Create shields.io-style badges with custom label, message, colour, style and logo for GitHub READMEs.

Blur only the background of a portrait; AI finds the person on your device and nothing is uploaded.

Replace a portrait's background with transparency, a solid colour or your own picture, on your device.

Get a transparent person cut-out, a person mask and a background mask from portraits, made on your device.

Create a grayscale depth map from a single photo with Depth Anything V2, on your device.

Select any object in a photo by clicking it with Segment Anything (SlimSAM); save the mask or object as PNG.

Paint over unwanted objects, people or text and let AI fill the area, on your device.

Colourise old black and white photos with natural colours using DDColor, privately on your device.

Reduce grain, low-light noise and JPEG artefacts with a restoration model that runs on your device.

Repair edges and fine detail with a lightweight super-resolution model, then sharpen lightly, normally or strongly.

One-click enhancement: remove noise, repair detail and upscale photos ×2 or ×4.

Detect 33 body keypoints from a photo or your camera and draw the pose skeleton, on your device.

Track 21 points per hand in real time from your camera; see left/right hand, finger states and FPS.

Recognise open palm, fist, thumbs up/down, victory, pointing up and 'I love you' gestures live.

Detect 478 face landmarks from a photo or camera and draw the outline, eyes, brows, nose and lips.

Classify visible facial expressions (happy, sad, angry, surprised, neutral, fear, disgust) with confidence scores.

Detect speech, music, dogs, sirens, rain, vehicles, applause and 500+ sounds with a timeline, on your device.

Find where people speak and where it's silent, with timestamps, totals and an exportable segment list.

Estimate a song's tempo (BPM) with beat markers and half/double-tempo alternatives.

Estimate a song's key (e.g. A minor or C major) with confidence, relative key and Camelot code.

Remove fan, hum, traffic and room noise from voice recordings with RNNoise; compare and download a clean WAV.

Turn speech in videos into timed subtitles with Whisper, privately on your device; save as SRT, VTT or TXT.

Remove background noise from speech in videos; the picture is copied as-is and only the audio is cleaned.

Generate short, accessibility-focused alt text and an optional detailed description for images, on your device.

Turn a photo into a short, detailed or very detailed description with a vision-language model on your device.

Upload a PDF, TXT or Markdown file and ask questions; the document is parsed, indexed and answered on your device.

Compare two sentences or short texts by meaning, not words, using sentence embeddings on your device.

Highlight people, organisations, places and other names in English text with confidence scores and CSV export.

Classify the emotions expressed in English text: joy, sadness, anger, fear, surprise, neutral and more.

Find a code snippet's programming language among 107 languages, with confidence and alternatives.

Turn English articles and long texts into short, medium or detailed summaries without sending the text anywhere.

Extract printed text from photos, screenshots and scans with Tesseract OCR running on your device.

Recognise text mixing up to three languages, including Latin, Cyrillic, Greek, Arabic, Hebrew, Hindi, Chinese, Japanese and Korean.

Translate text between English and 23 languages with OPUS-MT models on your device; nothing goes to a translation server.

Turn English text into natural speech with 14 American and British voices, adjustable speed and WAV download.

Chat with a small AI model that runs entirely in your browser; nothing you type is sent to a server.