The system of record for how work actually happens.
Swap PNG, JPEG, WebP, AVIF, GIF, and BMP with format-aware quality math, transparent alpha-channel handling, and a savings stamp on every output. The chip rail tells you what each swap saves before you commit.
Move between PNG, JPEG, WebP, AVIF, GIF and BMP with format-aware quality.
FyDark Convert covers thirty-six swap directions across PNG, JPEG, WebP, AVIF, GIF, and BMP. The matrix shows typical savings per pair; hover any cell to see the conversion's notes and what the encoder pair is tuned for.
PNG → AVIF · the modern hero swap. Lossless source through a state-of-the-art lossy encoder gives the biggest LCP gains the web can produce today.
Pick any input and any output. The conversion engine handles transparency, gamma, and color space mapping automatically — you don't think about it, the swap just lands cleanly.
Year released, browser support meter, alpha behaviour, and the verdict on when to reach for it. Six side-by-side cards so you can compare PNG against AVIF, or JPG against WebP, without leaving the page.
PNG remains the safest lossless format on the web. Full alpha, broad compatibility, predictable encoding. Trades file size for fidelity — the right pick when pixels need to round-trip without loss.
Diagrams · UI exports · screenshots · anywhere lossless matters
JPEG ships in every browser, every email client, every CMS, every device built since the mid-90s. No alpha channel, but the deepest range of quality presets and the most predictable encoder behaviour on photographic content.
Email · legacy CMS · photo libraries · maximum compatibility
WebP packs ~30–50% smaller than JPEG at matched visual quality and carries full alpha. Ships in every modern browser and most CMSes accept it inline. The default modern format unless AVIF is justified.
Web hero · landing pages · CMS-friendly · safe modern default
AVIF runs ~50% smaller than WebP again on hero imagery — the biggest size cut the web has produced in a decade. Full alpha, modern color spaces, rapidly approaching universal browser support. The right hero pick on any 2024+ stack.
Hero imagery · LCP-tight pages · modern web stacks
GIF is showing its age — 256 colors max, 1-bit alpha, and patent expiry that pre-dates the modern web — but its animated cousin still rules forum embeds, messaging, and meme culture. Static GIFs convert cleanly to PNG / WebP for size.
Animated stickers · pixel art · forum embeds · nostalgia
BMP stores raw pixel data uncompressed — useful as a lossless intermediate when round-tripping through legacy tools, but a poor format to ship. Convert BMP sources to PNG or WebP and ship the smaller file.
Convert sources · OS clipboards · vintage Windows tooling
Source bytes get decoded into a raw bitmap, normalised through sRGB with alpha pre-multiplied, then re-encoded into the target format. Each module has labelled input + output ports so the schematic reads end-to-end.
The source file is decoded into a raw bitmap with its native color space, alpha channel, and gamma. The studio reads format, dimensions, and metadata up front so you know what you're working with.
Color space lifts to sRGB, alpha pre-multiplies if needed, and gamma normalises. This middle step is what makes 0.86 quality look the same across every output format — the bitmap is consistent before re-encoding.
The target encoder writes the file at the chosen quality. Alpha lands in formats that support it; flattens against a chosen background for formats that don't. Savings % stamped on the output before export.
FyDark Convert ships for designers, developers, marketers, photographers, founders, and content creators. Each station shows the typical FROM → TO swap that bench reaches for, with the savings stamp baked in.
Convert a PNG master to AVIF for hero, WebP for compatibility, and a JPEG fallback for email — three outputs from one source in a single recipe pass. Alpha preserved on the modern formats, flattened against the brand white for JPEG.
Convert a 4 MB PNG export from Figma to a 280 KB AVIF for the production landing hero. AVIF cuts the LCP byte budget by ~85% vs the PNG source and ~40% vs the WebP equivalent — pure performance gain.
Phone cameras output HEIC. Most CMSes can't render HEIC inline. Convert HEIC → WebP at q.86 for a CMS-friendly drop that's still 60% smaller than the equivalent JPEG would be.
PNG portfolio masters convert to lossless WebP at ~30% smaller file size with no visible compromise — pixel-identical, just packed differently. Lossless WebP fallback works on every modern browser.
Apple wants PNG or JPEG; Google Play accepts JPEG or PNG; Microsoft accepts PNG. Convert one master to the per-store published format with the right dimensions, all in a saved recipe per store.
TikTok and Instagram prefer JPEG inline. X handles WebP cleanly now. Forum platforms still occasionally choke on AVIF. Convert a single source to the platform-native format with one click per channel.
Format selection, alpha handling, encoder math — every question filed as an index card. Read end-to-end or pick the card you need.
AVIF when you control the rendering surface and modern browser is a safe assumption — landing pages, app UI, web2 / web3 dashboards. WebP as the default fallback for older Safari and any system that doesn't yet decode AVIF. JPEG for email clients, legacy CMSes, image embeds in PDFs, and anywhere broad compatibility matters more than file size.
JPEG has no alpha channel, so transparency has to flatten against a background colour. The studio prompts you to pick the flatten colour (default white) before export, then composites the alpha-laden source onto that background and encodes the result. Round-tripping back to PNG won't restore transparency — that information is lost in the JPEG.
No, and this is a common confusion. JPEG is lossy — once an image is encoded as JPEG, the lossy compression artifacts are baked in. Converting to PNG just packs those artifacts losslessly in a bigger file. The right move is to convert from your actual source (PSD / RAW / Figma export) into the target format directly, not from an already-compressed JPEG.
WebP-lossless uses a smarter compression algorithm than PNG — predictive coding plus context modelling vs PNG's DEFLATE. Both are byte-perfect (lossless) but WebP-lossless typically packs ~25–35% smaller for the same pixels. That's not quality loss; it's better compression of identical data.
Yes. Drop multiple files into batch mode, set a single target format and quality, and the converter applies it to every input. Pair with Resize and Compress in a recipe to ship a whole folder through one pipeline — every file converted, resized, and packed in a single zip output.
No. Every encoder runs on the Canvas API in your tab — same engine the rest of the studio uses. The source bytes stay on-device; only the converted output you save touches your disk. Refreshing the page clears state.
Every track on this page links to its own dedicated workspace — resize, crop, compress, convert, effects, batch, SVG cleanup, privacy. Same canvas, same recipe shelf, more depth where you need it.