File Converters

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3MF Viewer

Open a 3MF print file, orbit it and check its parts and size.

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AAC To MP3

Convert raw .aac audio into an MP3 for any player.

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Add Text To Video

Put a title or caption on a video at a chosen time.

Audio To Base64

Turn a short audio clip into a base64 data URI.

Audio To CSV/JSON

Export raw audio samples as CSV or JSON for analysis.

Audio To OGG/WebM

Encode audio to WebM or OGG Opus, or MP4 AAC, locally.

Audio To Video

Put a still image behind an audio file to make an uploadable video.

Audio To WAV

Convert MP3, M4A, FLAC or OGG to 16- or 24-bit WAV.

AVIF Converter

Convert AVIF to PNG, JPEG or WebP, or encode to AVIF.

Base64 Encoder / Decoder

Encode and decode Base64, standard or URL-safe.

Bit Depth Converter

Convert 24-bit to 16-bit WAV with proper dither.

Boomerang Maker

Make a short clip bounce forwards and backwards like a boomerang.

Codec Support Checker

Check which video codecs and containers this browser supports.

Compress PDF

Shrink a PDF by re-encoding photos and packing data.

Crop Mark Generator

Make a PDF template with crop marks, bleed and trim guides.

CSS Nesting Converter

Nest flat CSS with & or flatten nested CSS back into plain rules.

CSV / JSON Converter

Convert CSV to JSON and back, quoting handled properly.

CSV To Excel Converter

Convert CSV to an Excel workbook, or an Excel sheet to CSV.

Extract Images From PDF

Pull every embedded picture out of a PDF at full quality.

Filename Generator

Safe, consistent file names from plain words, with dates and suffixes.

Fill PDF Form

List a PDF form's fields and fill them in.

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FLAC To MP3

Shrink lossless FLAC music into a portable MP3.

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FLAC To WAV

Unpack lossless FLAC into a 16- or 24-bit WAV.

Flatten PDF

Lock filled form fields and comments into the page.

FPS Converter

Convert a video to a different frame rate, keeping its speed.

Frame Rate Detector

Measure a video's fps and spot variable frame rate.

GIF Frame Extractor

Save any frame of an animated GIF as a PNG.

GIF To PNG

Convert a GIF to PNG or JPG, or every frame to a ZIP.

GIF To Video

Convert an animated GIF into a much smaller video file.

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GLB To OBJ

Convert a GLB or glTF model to OBJ for older 3D software.

GPX Converter

Convert GPX, KML and GeoJSON to each other or to CSV.

HEIC To JPG

Turn an iPhone HEIC photo into a JPEG.

HEIC To PNG

Decode an iPhone HEIC into a lossless PNG.

HEIC To WebP

Turn an iPhone HEIC photo into a small WebP for the web.

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HEVC To H.264

Convert iPhone HEVC (H.265) video to H.264 that plays anywhere.

HTML To Markdown

Turn HTML into clean Markdown with lists, links, code and tables.

HTML To PDF

Turn pasted HTML into a clean PDF with headings, lists and links.

ICO To PNG

Convert an ICO icon to PNG, one size or every size.

Image Converter

Convert HEIC, TIFF, PSD, WebP and more to PNG, JPG, WebP or AVIF.

Image File Size Calculator

How big an image file will be, raw and compressed.

Image Sequence To Video

Join numbered still frames into a video at any frame rate.

Image To ASCII Art

Turn a photo into ASCII art at any character width.

Image To Data URI

Base64-encode an image as a data URI for CSS or HTML.

Image To WebP

Convert to WebP, JPEG or PNG with a quality slider.

JPG To PDF

Put JPG photos into a PDF, one per page.

JSON To YAML Converter

Convert JSON to YAML and YAML back to JSON.

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M4A To MP3

Convert iPhone and iTunes M4A audio to MP3 in your browser.

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M4A To WAV

Turn iPhone voice memos and M4A files into editable WAV.

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MKV To MP4

Turn an MKV into an MP4 that phones, TVs and editors open.

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MOV To MP4

Turn an iPhone or QuickTime MOV into an MP4 that plays anywhere.

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MP3 To WAV

Turn an MP3 into an editable 16- or 24-bit WAV.

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MP4 Compressor

Shrink a video to an MP4 under a target size in MB.

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MP4 To MP3

Pull the sound out of a video and save it as an MP3.

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MP4 To WebM

Convert an MP4 to a royalty-free VP9 WebM for the web.

Mute Video

Remove the soundtrack from a video and keep the picture.

OBJ To GLB

Convert OBJ, MTL and textures into one GLB file in the browser.

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OBJ To STL

Convert an OBJ model to STL for your slicer, scaled to millimetres.

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OGG To MP3

Convert OGG Vorbis audio into an MP3 that plays anywhere.

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OPUS To MP3

Turn WhatsApp and Telegram .opus voice notes into MP3.

Password Protect PDF

Lock a PDF with AES-256 and an open password, without uploading it.

PDF Merger

Combine PDFs into one file in your browser: nothing uploaded, pages in any order.

PDF Metadata Editor

Edit a PDF's title, author, subject and keywords.

PDF Page Counter

Count PDF pages and find which ones are the heaviest.

PDF Page Deleter

Remove pages from a PDF in your browser: nothing uploaded, original untouched.

PDF Page Extractor

Save single PDF pages as a new file in your browser: nothing uploaded.

PDF Page Numbers

Stamp page numbers on every page of a PDF, any position.

PDF Rotator

Rotate and reorder PDF pages without uploading the file.

PDF Splitter

Pull the pages you need out of a PDF, locally.

PDF Text Extractor

Extract the text layer from a PDF, privately, in your browser.

PDF Watermark

Stamp text across every page of a PDF, in-browser.

PDF/A Converter

Turn a PDF into a PDF/A-2b archive copy, without uploading it.

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PLY To STL

Convert a PLY scan or mesh to STL for 3D printing.

PNG To JPG

Shrink a PNG into a JPEG with a quality slider.

PNG To PDF

Put PNG images into a PDF, one per page.

PSD To PNG

Convert a Photoshop PSD to PNG, with every layer if you want.

Remove Black Bars

Find black bars on any side of a video and crop them off.

Remove PDF Watermark

Strip text stamps and tagged watermarks from your own PDFs.

Repair PDF

Rebuild a damaged PDF that will not open, without uploading it.

Reverse Video

Turn up to 20 seconds of a video into a backwards clip.

Rotate And Flip Image

Turn a sideways photo upright, or mirror it, in one click.

Sample Rate Converter

Resample audio to 44.1, 48, 16 kHz or any common rate.

Screen Recorder Browser

Record your screen or webcam to a WebM file, locally.

Sign PDF

Add a typed or handwritten signature to a PDF, without uploading it.

Silence Generator

Download a silent WAV file of any length and sample rate.

Square And Story Padder

Fit a full video into a new shape with blurred or solid borders.

SRT / VTT Converter

Convert SRT subtitles to WebVTT and back, with an optional time shift.

SRT Timestamp Shifter

Move subtitles earlier or later, or fix frame-rate drift.

Stereo To Mono

Downmix stereo audio to mono and export it as WAV.

STL To GLB

Convert STL to GLB in the browser with colour and up-axis fixed.

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STL To OBJ

Convert an STL print file to OBJ with the up axis fixed.

Subtitle Burner

Hard-code subtitles from an SRT or VTT file into the picture.

SVG To 3D

Extrude an SVG logo into 3D and download a PNG.

SVG To CSS

Make a CSS icon class from an SVG, recolourable with currentColor.

SVG To JPG

Rasterise an SVG to a JPEG at any width.

SVG To PNG

Rasterise an SVG to a PNG at any width.

SVG To WebP

Rasterise an SVG to a small WebP at any width.

Tailwind To CSS

Turn Tailwind utility classes into plain CSS declarations.

Text To HTML Converter

Wrap plain text in semantic HTML paragraph tags.

Text To PDF

Turn pasted plain text into a tidy, word-wrapped PDF.

TIFF And BMP Converter

Turn TIFF scans and old BMP files into JPG or PNG.

Unlock PDF

Remove the password and restrictions from a PDF you can open.

Upload Time Calculator

See how long a file will take to upload at your connection speed.

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Video Compressor

Shrink a video to a target file size in megabytes.

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Video Converter

Convert MP4, MOV, MKV or WebM video to MP4 or WebM.

Video Cropper

Cut a video down to a new aspect ratio and frame the subject.

Video Duration Sum

Add up the total length of a batch of video clips.

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Video Fade

Fade a video in from black or white and out again.

Video File Size Estimator

Work out a video's file size from bitrate and length.

Video Frame Capture

Save a still frame from a video at any timestamp.

Video Info Inspector

Read the resolution, frame rate, bitrate and length of any video file.

Video Loop Maker

Repeat a short video several times in one file.

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Video Merger

Join several video clips end to end into one file.

Video Resizer

Scale a video down (or up) to a standard resolution.

Video Rotator

Turn a sideways video upright, or flip it like a mirror.

Video Speed Changer

Speed up or slow down a whole video, with or without its sound.

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Video Splitter

Split one video into equal parts or at set timestamps.

Video To Data URI

Turn a short clip into a base64 data URI or an inline video tag.

Video To GIF

Convert a short section of a video into an animated GIF.

Video To Image Sequence

Save a video's frames as numbered PNG or JPG files in a zip.

Video To WebP

Turn a video clip into a small, looping animated WebP.

Video Trimmer

Cut a video down to the part between two timestamps.

Video Watermark

Add a text or logo watermark to every frame of a video.

WAV To MP3

Encode WAV or other audio to MP3, without uploading it.

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WebM To MP3

Pull the audio out of a WebM file as an MP3.

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WebM To MP4

Convert a WebM clip to an MP4 that plays on any device.

WebP To JPG

Turn a WebP into a JPEG that everything can open.

WebP To PNG

Turn a WebP into a PNG, transparency kept.

XML To JSON Converter

Convert XML to JSON and JSON back to XML.