Explore all file conversion tools by category

Convert AVIF images to JPG in your browser with a background colour control, and a clear note on browser decode support.

Paste a Base64 string or data URI and decode it back into a downloadable image in your browser.

Convert BMP bitmap images to compressed PNG in your browser, shrinking the file with no visible quality loss.

Convert the first frame of a GIF to a lossless PNG in your browser, with no upload and no animation lost silently.

Convert HEIC or HEIF photos from an iPhone to JPG in your browser, with a clear notice about which browsers can decode HEIC.

Convert an image to a Base64 data URI in your browser, with ready made copy buttons for CSS and HTML.

Convert JPG or JPEG photos to lossless PNG in your browser, with full batch support and no upload step.

Convert JPG or JPEG photos to WebP in your browser with an adjustable quality slider and no upload step.

Convert PNG images to JPG in your browser with adjustable quality and a custom background behind transparency.

Convert PNG images to WebP in your browser with an adjustable quality slider, keeping full transparency.

Convert SVG vector graphics to raster PNG in your browser with control over width, height and export scale.

Convert WebP images to PNG in your browser, keeping full transparency and resolution, with no upload step.

Resize a whole batch of images to one target width in your browser, processed sequentially with a per file size report and one click downloads.

Generate a full set of favicon PNGs at 16, 32, 48, 180 and 512 pixels from one source image, plus the HTML link tags to paste into your site.

Convert a photo to grayscale in your browser using true luminance weighting, with an intensity slider to blend between colour and black and white.

Blur a whole photo in your browser with an adjustable radius slider, useful for a soft background or a quick privacy blur before sharing.

Add a solid coloured border around a photo in your browser with adjustable width, colour and rounded corner radius.

Click any point on a photo to read the exact pixel colour in your browser, with instant HEX, RGB and HSL values and copy buttons for each.

Compress JPG, PNG and WebP images in your browser with a quality slider that shows the before and after file size as you drag.

Crop a photo in your browser with a draggable rectangle and resizable corner handles, plus social aspect ratio presets for square, portrait and landscape crops.

Flip an image horizontally or vertically in your browser to mirror a photo or correct a reversed scan, with an instant preview before you download.

Resize images in your browser by exact pixel dimensions or percentage, with an aspect ratio lock and common preset sizes.

Rotate an image 90, 180 or 270 degrees, or spin it to any arbitrary angle, with the canvas automatically resized so nothing is cut off.

Add a text watermark to a photo in your browser with control over position, opacity, size and colour, before downloading the finished file.

Delete PDF pages you select from a thumbnail grid, right in your browser, and download a clean document with those pages gone.

Extract text from PDF pages in your browser, with copy and download actions for the plain text of each page.

Combine JPG and PNG images into one PDF in your browser, with page size, orientation and margin controls.

Convert Markdown to a clean PDF in your browser, supporting headings, bold, italic, lists, code and links.

Merge PDF files in your browser, drag them into any order and download one combined document with nothing ever uploaded.

View a PDF's title, author, subject, keywords, producer and dates in your browser, with nothing uploaded to a server.

Count PDF pages and check each page's dimensions in your browser, for one file or a whole batch at once.

Convert every PDF page to a PNG or JPG image in your browser, at a scale you choose, then download them individually or as a batch.

Reorder PDF pages by moving thumbnails up or down in your browser, then download a document with the new page order.

Rotate PDF pages by 90, 180 or 270 degrees in your browser, applied to the whole document or just the pages you pick.

Split PDF pages into individual files or a specific page range in your browser, with thumbnails to check each page first.

Turn plain text into a PDF in your browser with font size, margin and page size controls, no formatting required.

Compare two pieces of code or text line by line with added, removed and unchanged lines marked clearly.

Parse a five field cron expression into plain English and see the next run times computed in your local time zone.

Strip comments and whitespace from CSS, collapse redundant semicolons, and keep strings and url values intact.

Collapse HTML whitespace and strip comments while preserving the exact content of pre, textarea, script and style elements.

Convert HTML markup to JSX with attribute renaming, inline style object conversion and self closing tag fixes.

Strip comments and unnecessary whitespace from JavaScript with a scanner that respects strings, template literals and regex literals.

Pretty print JSON with a choice of indent width, an option to sort keys, and a precise line and column error when parsing fails.

Validate JSON with a precise line and column error position, plus stats on depth, key count and document size.

Test a regular expression live against your text, inspect capture groups and match indexes, and preview a replace.

Format SELECT, INSERT, UPDATE, DELETE and JOIN statements with keyword uppercasing and clause based indentation.

Strip comments, metadata and editor namespaces from an SVG, remove empty groups and round path precision.

Paste or upload an SVG and get back a typed React component with camelCase props, forwarded refs and a memo option.

Convert text between upper, lower, title, sentence, camel, pascal, snake, kebab, constant, alternating and inverse case.

Count characters with and without spaces live, with limit indicators for Twitter, SMS, meta titles, meta descriptions and Instagram.

Find and replace text in plain or regular expression mode, with case sensitivity, whole word matching and a replacement count.

Generate placeholder Lorem Ipsum text by paragraphs, sentences or words, with the option to start with the classic opening line.

Remove duplicate lines from a text list with case sensitivity, trimming, and keep first or last options, plus a count of lines removed.

Remove line breaks from text, keep paragraph breaks only, or replace every break with a chosen separator.

Reverse text by character, by word order or by line order, with a live preview and correct handling of emoji and accents.

Turn a title into a URL safe slug with a chosen separator, lowercase output, accent transliteration and a max length.

Compare two blocks of text line by line and see exactly what was added, removed and left unchanged between them.

Sort a list of lines alphabetically, in reverse, by length, numerically or randomly, with case sensitivity and dedupe options.

Trim lines, collapse repeated spaces, remove blank lines and convert tabs to spaces in one pass over any text.

Count words, characters, sentences and paragraphs live as you type, with reading time, speaking time and a top keyword table.

Convert a CSV file into a JSON array using a real RFC 4180 parser that handles quoted commas, embedded newlines and escaped quotes correctly.

Convert CSV into an aligned Markdown table in your browser, with left, center or right column alignment.

View a CSV file as a sortable, searchable table in your browser, with row and column counts and no upload required.

Compare two JSON documents in your browser and see exactly which paths were added, removed or changed.

Convert a JSON array or object into a CSV file in your browser, with dot notation flattening for nested data and a choice of delimiter.

Generate a CREATE TABLE statement and INSERT statements from a JSON array in your browser, with a choice of SQL dialect.

Infer TypeScript interfaces or type aliases from a JSON sample, with nested objects, arrays, unions and optional fields handled automatically.

Convert JSON into well formed XML in your browser, with a configurable root element and array item name.

Convert JSON to clean, readable YAML in your browser with control over indent width and key ordering.

Convert TSV to CSV, or CSV to TSV, in your browser with correct quoting and a choice of delimiter for each direction.

Convert XML to JSON in your browser using DOMParser, with an option to keep or drop XML attributes.

Convert YAML to JSON in your browser, with clear error positions when a document fails to parse.

Join several audio files together into one WAV in your browser, with an optional silent gap or a smooth crossfade between each clip.

Inspect an audio file's duration, sample rate, channels, bit depth where it can be derived, estimated bitrate and any ID3 tags, all in your browser.

Speed up or slow down an audio file in your browser, with a choice between letting the pitch shift naturally or keeping it steady with a time stretch algorithm.

Decode almost any audio file in your browser and export it as a standard 16 bit PCM WAV, with sample rate, channel count and duration shown before you download.

Pick a start and end point on a real waveform and export just that slice of an audio file as a WAV, entirely in your browser.

Raise the level of a quiet audio file in your browser, with a live peak reading, a clipping warning and an optional one click normalise mode.

Decode a video file's soundtrack and export just the audio as a WAV file, with duration, sample rate and channels shown before you download.

Capture still frames at a fixed interval across an entire video and download every one as a PNG or JPG image in your browser.

Strip the audio track out of a video by re recording only its picture with MediaRecorder, and export a silent WebM file in your browser.

Seek a video to any moment, or capture an evenly spaced grid of frames, and export the result as a PNG or JPG thumbnail in your browser.

Capture frames from a video clip between two times, quantise a palette and encode a looping GIF entirely in your browser.

Trim a video to an exact start and end point by re recording its stream with MediaRecorder, and export a WebM clip in your browser.

Build multi layer CSS box shadows with x, y, blur, spread, colour and inset controls, plus a live preview and CSS output.

Simulate protanopia, deuteranopia, tritanopia and achromatopsia on a colour or an uploaded image using published colour vision matrices.

Check the WCAG contrast ratio between two colours with pass or fail results for AA and AAA at normal text, large text and UI components.

Generate complementary, analogous, triadic, tetradic, monochromatic and split complementary palettes from a base colour, exportable as CSS, Tailwind or JSON.

Build linear, radial and conic CSS gradients with multiple colour stops, angle control and live copy paste CSS output.

Convert HEX colours to OKLCH with correct gamma decoding, an OKLab intermediate step and an exact reverse conversion back to HEX.

Convert 3, 4, 6 and 8 digit HEX colours to RGB and RGBA, with matching HSL and ready to paste CSS.

Convert HSL and HSLA colours to HEX and RGB with hue, saturation, lightness and alpha sliders.

Extract a dominant colour palette from an uploaded image using a real median cut quantisation algorithm on sampled pixels.

Generate random colours constrained by hue range, saturation and lightness, with a lock and regenerate palette mode.

Convert RGB and RGBA channel values to a HEX colour with sliders, a live swatch and matching HSL output.

Build a perceptually even 50 to 950 colour scale from one colour, exportable as CSS custom properties or a Tailwind config.

Encode text or a whole file to Base64 and decode it back, with a URL safe variant and correct UTF-8 handling.

Hash a file with SHA-256, SHA-1, SHA-384 or SHA-512 in chunks with real progress, and compare it against an expected checksum.

Generate an HMAC of a message with a secret key using Web Crypto, with SHA-256, SHA-384 or SHA-512 and hex or Base64 output.

Encode and decode named and numeric HTML entities, with an option to escape only the five reserved characters or everything non ASCII.

Decode a JWT header and payload, pretty print every claim and see exp, iat and nbf as human readable dates with an expired indicator.

Generate an MD5 checksum of text or a file in your browser, implemented by hand since Web Crypto deliberately leaves MD5 out.

Generate a cryptographically secure random password with adjustable length, character classes and a real entropy calculation.

Generate cryptographically secure random strings with alphanumeric, hex and Base58 presets, a custom charset and bulk output.

Generate a SHA-256 hash of text or a file using the Web Crypto API, with SHA-1, SHA-384 and SHA-512 options too.

Convert text to binary with 8 bit grouping and back again, plus matching hex, octal and decimal views of the same bytes.

Percent encode and decode URLs and query strings, with separate component and full URI modes and a parameter breakdown table.

Generate cryptographically random UUID v4 or time ordered UUID v7 identifiers in bulk, with uppercase and brace formatting.

Build a canonical link tag with URL normalisation, plus guidance on self referencing canonicals, tracking parameters and cross domain use.

Build hreflang link tags from language and region pairs, with ISO 639-1 and ISO 3166-1 validation, x-default handling and sitemap XML output.

Build 301 and 302 redirect rules for Apache with plain path, wildcard and regex modes, plus the equivalent Nginx configuration.

Analyse pasted text or HTML for one, two and three word phrase frequency and density, with a stop word filter and a target keyword check.

Build a complete set of HTML meta tags, from title and description to Open Graph and Twitter card, with live character counters and one click copy.

Build Open Graph tags and see an accurate preview of the link card on Facebook, LinkedIn, Slack and Twitter before you publish.

Create a QR code from any URL or text with a chosen error correction level, size, margin and colours, downloadable as PNG or SVG.

Build a robots.txt file with user agent groups, allow and disallow rules, crawl delay and sitemap references, using tested presets.

Generate valid JSON-LD for Article, Product, FAQPage, HowTo, LocalBusiness, Organization, BreadcrumbList and Event with required fields checked for you.

See a pixel accurate desktop and mobile Google search preview, with the title, URL breadcrumb and description measured against real truncation widths.

Paste a list of URLs and generate a valid XML sitemap with lastmod, changefreq and priority, with warnings past the size and URL count limits.

Build campaign links with source, medium, campaign, term and content parameters, with validation, lowercase normalisation and a bulk mode.