UnHEIClocal image lab

Complete tool directory

All image converters and inspection tools

22 tools, each one running in your browser tab with no upload endpoint, no account and no watermark. Every row below states the file types the tool genuinely accepts and the output it genuinely produces, read from the same contract the converter enforces at runtime. Formats that are not listed are not supported — see the format detector if you are not sure what a file actually is.

Convert HEIC and HEIF photos

iPhone photos decoded in this browser tab. Source EXIF, GPS, capture date and ICC profiles are not preserved by the installed HEIC decoder.

Convert AVIF and WebP to older formats

Modern web formats that older apps still reject. Animated sources are refused rather than silently reduced to one frame.

Convert everyday raster formats

PNG, JPG and BMP conversions with the same signature, MIME, extension and browser-decode checks applied to every output.

Resize, compress and batch

Size and batch work on formats the browser can already decode. No target file size is promised, because none can be guaranteed.

Inspect a file instead of converting it

Read-only tools. These report what a file is and what it carries; none of them rewrite or convert the bytes.

How to read this directory

Missing pairs are missing on purpose

A conversion only gets a page when the browser can genuinely perform it and the output can be checked. TIFF, ICO and SVG conversions are absent because this release has no verified decoder or encoder for them.

Every output is checked before download

MIME type, magic bytes, file extension, dimensions and a real browser decode all have to pass. A file that fails any check is reported as an error rather than handed to you.

Animated sources are refused, not flattened

If a bounded check cannot prove a source holds exactly one still image, the still-image routes reject it instead of silently exporting one arbitrary frame.