Rebate
Frame your photos with their camera settings: camera, lens, focal length, aperture, shutter, ISO and date, read from EXIF and set into the border. Runs entirely on-device, as a website (installable PWA) and as a native iOS app built from the same JavaScript.
Formats
| Format | How it's decoded |
|---|
| JPEG, PNG, WebP | Browser native |
| HEIF / HEIC / HIF | Native in Safari & the iOS app; heic-to (libheif wasm) elsewhere |
| TIFF | Native in Safari & the iOS app; UTIF.js elsewhere |
| DNG, ARW | The camera's embedded full-size JPEG preview. If the preview is small, the RAW is developed: CoreImage on iOS, libraw-wasm on the web |
EXIF comes from exifr, with a WebP EXIF chunk reader and a raw Exif\0\0 scan as fallbacks.
Frames
In the order they appear in the picker:
- Strip: a white bar under the photo with the logos, camera and lens, exposure and date.
- Feed 4:5 / Feed 4:5 Dark / Feed 4:5 Blur: made for Instagram posts. Always a 4:5 portrait canvas whatever the photo's shape; the photo sits whole in a fixed box, and every line of text has a fixed size and place: date and time and location above, camera and lens logos over the models (left) and exposure over "Shot by … · ©" (right) below.
- Backdrop: the photo on a blurred copy of itself.
- Viewfinder: the details over a dark gradient at the bottom of the photo.
- Overlay: no border at all. The photo is the whole image, and every line of text sits on it over soft shades at the top and bottom: caption, date and time and location at the top; logos over the camera and lens, and exposure over "Shot by … · ©", at the bottom.
- Instant, Gallery mat and Film rebate.
- Lightroom: Lightroom-style info panel with the photo's real RGB histogram and the ISO / focal length / aperture / shutter readout.
- Atlas: an offline map in a compass bezel. The pin marks where the photo was taken. When the camera recorded a compass heading, a wedge shows the direction it faced, as wide as the lens's actual angle of view. Shows the town, region and country. Exact coordinates appear only when Location is turned on. Map zoom: City, Region, Country, Continent.
- Postcard: the photo above a postcard back. The caption is handwritten (or "Greetings from …"), and the camera details are typed on the address lines. The stamp shows a globe turned to the location, under a postmark with the town and date.
- Slide mount: a square 35mm slide mount with a handwritten label, a frame number and a processing date.
- Cinema: letterbox bars with a location/date title card, the caption as a subtitle, and a "Shot on" credit.
- Film strip: a strip of 35mm film on a light table: true-to-scale perforations, amber edge printing (frame numbers, stock name, a DX-style barcode) and the camera details along the edge. Runs vertically for portrait photos.
- Terminal: a green phosphor screen: the details printed as a command's output with dotted leaders and a cursor, scanlines and glow.
Options:
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Orientation: match the photo, or force a vertical or horizontal frame. With the original ratio this turns a horizontal photo into a vertical post (and back) by extending the background.
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Aspect ratio: Original, 1:1, 4:5, 3:4, 2:3, 5:7, 9:16, A4, or any custom W:H. Presets flip with the orientation (4:5 ↔ 5:4).
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Never cropped: ratios only add space around the frame. The photo always keeps its full resolution and shape.
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Border size, corner radius, background and typeface are adjustable. Every text line can be turned off or edited per photo.
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35mm-equivalent focal length: a Details option. It uses the camera's recorded value, or works it out from the sensor size when the camera didn't record one.
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Saved JPEGs can keep the camera metadata (never GPS).
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Crop factors: a bundled database of about 1,280 cameras and 290 product-line rules (data/cameras/*.json, compiled by npm run cameras). It covers Canon, Nikon, Sony, Fujifilm, Panasonic/LUMIX, OM System/Olympus, Leica, Ricoh/Pentax, Sigma, Hasselblad and Phase One. Phones and drones rely on the 35mm value they record.
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Brand logos: 51 camera, phone and lens brands (data/logos/*.json, compiled by npm run logos), from Simple Icons (CC0) and public-domain Wikimedia Commons wordmarks. With logos on, the logo row sits above the camera/lens line, and the shot details go beneath.
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Typefaces (44, all open source, bundled), picked by kind:
- Sans: Inter, Manrope, Unbounded, Barlow Condensed, Jost, Space Grotesk, Montserrat, Poppins, Oswald
- Serif: Fraunces, EB Garamond, Playfair Display, Cormorant Garamond, Instrument Serif, Lora, Bodoni Moda, Noto Serif Display
- Display: Anton, Bebas Neue, Abril Fatface, Righteous
- Code & mono: JetBrains Mono, Fira Code, IBM Plex Mono, Source Code Pro, Space Mono, Courier Prime
- Digital: DSEG14 (14-segment LCD), Orbitron, VT323, Share Tech Mono, Silkscreen, Press Start 2P
- Handwriting: Pacifico, Dancing Script, Permanent Marker, Caveat, Nanum Pen Script
- 한글: IBM Plex Sans KR, Gowun Batang, Black Han Sans, Nanum Myeongjo, Jua, Gaegu
Every glyph is drawn in the chosen face. Where a face lacks a symbol (measured per face: α in about two thirds of them, ′ ″ · © × —), a stand-in in the same face is used, so "α7CR" in Caveat reads "a7CR" in Caveat rather than mixing in a glyph from another font.
Korean text in any Latin face falls back to a Korean face of the same style (sans → IBM Plex Sans KR, display → Black Han Sans, serif → Gowun Batang, mono → Nanum Gothic Coding, handwriting → Nanum Pen Script). Fonts load per character range, so a Korean caption only downloads the glyphs it uses. Only WOFF2 files are bundled.
Maps and place names
Map frames are drawn on the device from bundled data, so a photo's location is never sent anywhere. The data is fetched only on first use (about 520 KB gzipped) and then cached for offline use.
以上为 README 的开头部分。其余内容请阅读原文。 查看完整 README ↗
