converter

Extract an exact byte range from a text file, like dd or tail -c, without splitting characters.

Cut a text file down to an exact maximum byte size, without splitting multi-byte characters.

Encode a real uploaded file to Base64 or hex text, or decode text back into a downloadable file.

Upload a real .xlsx, .xls, or .csv workbook and convert a sheet to JSON.

Upload a real .xlsx or .xls workbook and convert a sheet to CSV.

Paste CSV text and download it as a real .xlsx workbook.

Paste a JSON array of objects and download it as a real .xlsx workbook.

Convert one continuous hex string, strictly two digits per byte, into a downloadable binary file.

Turn a list of hex values, each of any width, into a downloadable binary file.

Turn pasted ANSI-colored terminal art into a full-color PNG image, right in your browser.

Decode an Animated PNG into its individual frames, each downloadable as its own still PNG.

Change how many times an Animated PNG repeats (or make it loop forever) without re-encoding a single frame.

Flip an Animated PNG's frame order so it plays backward, keeping each frame's original delay.

Speed up or slow down an Animated PNG's playback by any multiplier from 0.1x to 10x.

Plays an APNG's frames on a canvas and records them into a real video file — since no browser can encode true AVI, this honestly downloads WebM instead.

Convert an Animated PNG (APNG) into a real animated GIF, entirely in your browser.

Play back an APNG's frames on a canvas and record them into an MP4 (or WebM fallback) video, entirely in your browser.

Decode an Animated PNG's frames and tile them into a single sprite sheet grid image.

Convert an Animated PNG (APNG) into a real animated WebP file, right in your browser.

Plays an APNG's frames on a canvas and records them into a real video file — since no browser can encode true WMV, this honestly downloads WebM instead.

Turn pasted ASCII text art into a grayscale PNG image, right in your browser.

Attempts to sample frames from an uploaded AVI and stitch them into an APNG — most browsers have no built-in AVI decoder, so this will honestly fail for most files.

Convert an AVIF image to PNG using your browser's own native AVIF decoder, entirely client-side.

Decode a base64 string or PNG data URI back into a downloadable PNG file, in your browser.

Turn a raw, headerless BGR byte dump (3 bytes per pixel, blue first) back into a downloadable PNG.

Turn a raw, headerless BGRA byte dump (4 bytes per pixel, blue first, alpha included) back into a downloadable PNG.

Reduce a signature to true 1-bit-style black and white using a luminance threshold.

Convert a digital stamp to true 1-bit-style black and white using a brightness threshold, right in your browser.

Convert an uncompressed BMP bitmap into a PNG, right in your browser, with full alpha support.

Upload a BPG file to see why client-side BPG decoding isn't possible — it requires a full HEVC decoder not bundled here.

Turn pasted Unicode braille pattern art back into a black-and-white PNG image, right in your browser.

Turn a pasted, comma-separated decimal byte list back into a downloadable PNG file, right in your browser.

Paste a data:image/png;base64,... URI (or bare base64) and download it as a real PNG file.

Decode a simple raster EPS file (colorimage + inline hex data) back into a PNG image.

Reduce a solid, filled icon down to just its boundary outline, right in your browser.

Upload a FLIF file to see why client-side FLIF decoding isn't possible — the format's development was redirected into JPEG XL.

Convert an animated GIF into a real Animated PNG (APNG), entirely in your browser.

Convert a GIF's first frame to a PNG using a hand-written LZW decoder, entirely in your browser.

Decode every frame of an animated GIF into a downloadable sequence of individual PNG images.

Convert a PNG to grayscale using either perceptual luminance or a simple channel average, right in your browser.

Turn a photographed handwritten signature into clean ink on a transparent background, using honest contrast and threshold math.

Convert a HEIF/HEIC photo to PNG using your browser's native decoder, where your platform supports it.

Paste a hexadecimal byte dump and decode it back into a downloadable PNG file.

Extract the largest image inside a Windows .ico icon file and convert it to a downloadable PNG.

Flatten a transparent PNG icon onto a solid RGB background color, right in your browser.

Remove a solid-color background from a PNG icon using chroma-key color matching, right in your browser.

Resize a PNG icon to an exact width and height using nearest-neighbor resampling, right in your browser.

Convert an icon to grayscale using either perceptual luminance or a simple RGB average.

Flatten every non-transparent pixel of a PNG icon into one solid fill color, keeping smooth edges.

Convert any uploaded image into a rubber-stamp-styled PNG: duotoned ink color, optional circle crop, ring border.

Convert a .jfif image to a lossless PNG, right in your browser.

Convert a JPG/JPEG icon to PNG format, entirely in your browser.

Convert a JPG logo to PNG format, ready for further editing that needs transparency support.

Convert a JPG/JPEG signature photo into a PNG file, right in your browser.

Convert a JPG or JPEG to a lossless PNG right in your browser, no upload required.

Convert an uploaded JPG photo into a rubber-stamp-styled PNG: duotoned ink color, optional circle crop, ring border.

Force a wide PNG into portrait orientation by rotating it 90 degrees, right in your browser.

Turn any logo into a flat black version while keeping its transparent background.

Convert a logo to grayscale using perceptual luminance or a simple RGB average, right in your browser.

Convert a logo into a flat, single-color silhouette while preserving its transparency and edges, right in your browser.

Turn any logo into a flat white version while keeping its transparent background.

Convert an uploaded PNG into a true two-color monochrome (duotone) image between a shadow and highlight color.

Sample evenly-spaced frames from an MP4 video and stitch them into a real Animated PNG (APNG), right in your browser.

Fill in the enclosed interior of an outlined (hollow) icon, right in your browser.

Extract a real image from a simple, single-image PDF and convert it to PNG, entirely in your browser.

Upload a PDN file to see why client-side PDN decoding isn't possible — PDN is Paint.NET's proprietary, undocumented project format.

Upload a PIK file to see why client-side PIK decoding isn't possible — no browser codec was ever published.

Extract a PNG's alpha channel as a viewable, downloadable grayscale image.

Permanently remove a PNG's transparency by flattening it onto a solid fill color.

Simulate converting a PNG to a lower per-channel bit depth (1, 2, 4, or 8 bits), quantizing color and alpha together.

Remove a chroma key color (like green screen) from a PNG, right in your browser.

Convert a PNG's pixels through grayscale, CMYK, or YCbCr color space math and back to RGB.

Flatten a PNG icon's transparency onto a solid background and convert it to JPG, right in your browser.

Convert a PNG icon to WebP format, preserving its transparency, entirely in your browser.

Convert a PNG logo to JPG by flattening its transparency onto a solid background color.

Convert a PNG logo to WebP for a smaller file size while keeping full transparency.

Make a PNG fully opaque by flattening its transparency onto a solid background color, right in your browser.

Optimize a PNG for a smaller file size by reducing its color complexity, right in your browser.

Adjust a PNG's color depth with a JPEG-style quality slider, right in your browser.

Quantize a PNG down to a small palette of its most popular colors, right in your browser.

Split a PNG into three grayscale images, one for each of its red, green, and blue channels.

Convert a PNG signature into a JPG file by flattening it onto a solid background.

Slice a PNG into rows and columns at custom pixel positions you choose, not just an even grid.

Split a PNG into its four separate red, green, blue, and alpha channel images, right in your browser.

Combine a sequence of same-size PNG frames into a single looping animated GIF, right in your browser.

Turn a PNG into colored ANSI terminal art using 24-bit truecolor escape codes, right in your browser.

Turn a PNG into classic character-based ASCII art, right in your browser.

Attempts a real, browser-native AVIF export via canvas.toBlob, with an honest error if your browser can't encode it.

Convert a PNG file into a base64-encoded data: URI you can paste directly into HTML or CSS.

Export a PNG's pixels as a raw, headerless BGR byte dump (3 bytes per pixel, blue first), right in your browser.

Export a PNG's pixels as a raw, headerless BGRA byte dump (4 bytes per pixel, blue first, alpha preserved).

Convert a PNG to an uncompressed 32-bit BMP with full alpha, hand-encoded in your browser.

Upload a PNG to see why client-side BPG encoding isn't possible — BPG wraps HEVC video coding, which no small browser codec provides.

Turn a PNG into dense, compact Unicode braille pattern art, right in your browser.

Convert a PNG file's raw bytes into a human-readable, comma-separated decimal byte list, right in your browser.

Scan a PNG's pixels and get a text report of every unique color converted to CMYK percentages.

Convert a PNG file into a complete data: URI string ready to paste into HTML, CSS, or JSON.

Convert a PNG into a real Level-2 Encapsulated PostScript (EPS) file with inline hex raster data.

Upload a PNG to see why client-side FLIF encoding isn't possible — the format's development was redirected into JPEG XL.

Convert a PNG to a real, valid GIF file using a hand-written LZW encoder, entirely in your browser.

Attempts a real HEIF export via the browser's canvas API; explains honestly why no browser currently supports it.

Convert a PNG file's raw bytes into a hexadecimal string, entirely in your browser.

Scan a PNG's pixels and get a text report of every unique color converted to HSI.

Scan a PNG's pixels and get a text report of every unique color converted to HSL.

Scan a PNG's pixels and get a text report of every unique color converted to HSV.

Convert a PNG into a real, valid Windows .ico icon file, with full alpha transparency preserved.

Convert a PNG to JFIF (the standard JPEG file format), with transparency flattened onto a background of your choice.

Convert a PNG to a JPG in your browser, flattening transparency onto a solid background first.

Scan a PNG's pixels and get a text report of every unique color converted to CIE L*a*b*.

Convert a PNG into a real, single-page PDF with alpha preserved via an SMask, built entirely in your browser.

Upload a PNG to see why client-side PDN encoding isn't possible — PDN is Paint.NET's proprietary, undocumented project format.

Upload a PNG to see why client-side PIK encoding isn't possible — PIK was never finished or standardized.

Convert a PNG to a binary P6 PPM file, with transparency flattened onto white, hand-encoded in your browser.

Convert a PNG into a real, single-layer Photoshop (PSD) file with alpha, hand-encoded in your browser.

Export a PNG's pixels as a raw, headerless RGB byte dump (3 bytes per pixel), right in your browser.

List every pixel's coordinates and RGBA channel values as CSV text, right in your browser.

Export a PNG's pixels as a raw, headerless RGBA byte dump (4 bytes per pixel, alpha preserved), right in your browser.

Convert an uploaded PNG into a rubber-stamp-styled PNG: duotoned ink color, optional circle crop, ring border.

Wrap a PNG's raw bytes in a real, valid SVG document with an embedded base64 <image>.

Convert a PNG to an uncompressed, baseline TIFF file with full alpha, hand-encoded in your browser.

Turn a PNG into a Voronoi-cell mosaic, sampling each cell's color from the source image, right in your browser.

Convert a PNG to WebP in your browser for smaller files, keeping full alpha transparency.

Checks a PNG and explains honestly why embedding it in a real binary .xls workbook isn't supported client-side.

Scan a PNG's pixels and get a text report of every unique color converted to YCbCr.

Force a tall PNG into landscape orientation by rotating it 90 degrees, right in your browser.

Convert a binary (P6) or ASCII (P3) PPM file to PNG, decoded by a hand-written parser in your browser.

Convert a Photoshop (PSD) file's merged image into a real PNG, hand-decoded in your browser.

Turn a raw, headerless RGB byte dump (3 bytes per pixel) back into a downloadable PNG.

Paste a list of r,g,b (or r,g,b,a) pixel rows plus a width and height to build a real PNG.

Turn a raw, headerless RGBA byte dump (4 bytes per pixel, alpha included) back into a downloadable PNG.

Turn a scanned or photographed rubber stamp impression into a clean digital stamp with transparent background, right in your browser.

Recolor a signature's ink strokes to solid black while keeping the shading intact.

Recolor a signature's ink strokes to classic ballpoint blue while keeping the shading intact.

Slice a grid-tiled sprite sheet PNG into individual frames and assemble them into an APNG.

Convert a digital stamp to grayscale using perceptual luminance or a simple RGB average, right in your browser.

Rasterize an SVG logo into a PNG at any pixel size, right in your browser.

Rasterize SVG markup into a PNG at any output size, entirely in your browser.

Generate a brand-new PNG icon from a short line of text, tightly cropped, no upload needed.

Render a company name or short text as a simple wordmark-style logo PNG, entirely in your browser.

Convert a line of plain text into a ring-bordered rubber-stamp PNG in one step.

Convert an uncompressed, baseline TIFF file to PNG, decoded by a hand-written parser in your browser.

Turn a photographed or scanned signature into a transparent PNG by keying out the paper color.

Convert a WebP icon to PNG format, preserving its transparency, entirely in your browser.

Convert a WebP logo back to PNG format while keeping its transparency intact.

Convert an animated WebP file into a real Animated PNG (APNG), entirely in your browser.

Convert a WebP image to PNG in your browser, preserving its full alpha transparency.

Attempts to sample frames from an uploaded WMV and stitch them into an APNG — no mainstream browser has a built-in WMV decoder, so this will almost always fail honestly.

Convert Base64 strings encoded with this site's own integer scheme back into integers.

Convert a list of sign-magnitude binary strings back into ordinary integers.

Convert a list of a/b fractions into integers, rejecting any that aren't whole numbers.

Convert decimal or hexadecimal numeric HTML entities back into integer code points.

Convert a single integer between any two number bases from 2 to 36.

Convert a list of integers into this site's own compact Base64 encoding scheme.

Convert a list of integers into sign-magnitude binary strings.

Express a list of integers as unreduced fractions over a chosen denominator.

Convert a list of integers (Unicode code points) into decimal numeric HTML entities.

Convert a list of integers into sign-magnitude octal strings.

Convert a list of non-negative integers into their English ordinal strings.

Convert a list of integers (0-16777215) into #RRGGBB hex color strings.

Convert a list of integers into unary notation: strings of repeated "1" characters.

Convert percent-encoded URL strings back into their integer Unicode code points.

Convert a list of integers (Unicode code points) into percent-encoded URL characters.

Convert a list of sign-magnitude octal strings back into ordinary integers.

Parse English ordinal strings like "21st" back into plain integers.

Convert #RRGGBB (or bare RRGGBB) hex color strings back into packed 24-bit integers.

Reinterpret signed integers as unsigned values at an 8, 16, or 32-bit width.

Convert unary (repeated "1") strings back into ordinary base-10 integers.

Reinterpret unsigned integers as two's-complement signed values at an 8, 16, or 32-bit width.