§ 11 — Tools27 tools, free to use● Runs in your browser
Photography tools.
27 tools for planning, shooting and delivering photographs: exposure and lens math, light and moon planning, print and pricing sums, and photo file utilities. Everything runs in your browser, and nothing you enter or open is uploaded.
Free, no account
Showing all 27 tools
§ 11.1
Light & exposure
05Equivalent exposure calculator
Change aperture, shutter speed or ISO and keep the same exposure. Every matching combination, in full or third stops.ND filter calculator
Enter your metered shutter speed and filter strength to get the long-exposure time, then run the countdown from the same screen.Sunny 16 exposure guide
No meter to hand? Pick the light you are standing in and get a starting exposure for your ISO, from bright snow and sand to open shade.Flash guide number calculator
Solve for guide number, distance or aperture with manual flash, adjust for ISO and power, and see how fast the light falls off behind the subject.Star shutter speed calculator
The longest shutter speed that keeps stars as points, from the NPF rule for your sensor, lens and aperture, with the 500 rule beside it.
§ 11.2
Lens & focus
06Depth of field calculator
The near and far limits of acceptable focus, the total depth and the hyperfocal distance for your sensor, lens, aperture and subject distance.Crop factor calculator
Convert focal length and aperture between sensor sizes, and see the angle of view a lens covers on full frame, APS-C, Micro Four Thirds and more.Subject framing calculator
How far to stand to frame a headshot, a full-length portrait or a whole team at your focal length, or which lens fits the room you have.Motion freeze shutter calculator
The shutter speed that freezes a sprinting player, a struck ball or a passing cyclist, from subject speed, direction, distance and focal length.Diffraction limit calculator
The aperture where diffraction starts to soften fine detail on your sensor, worked out from its size and resolution, before you stop down too far.Macro magnification calculator
Extension tubes on any lens: the magnification and reproduction ratio you reach, the effective aperture and light loss, working distance and the focus-stacking step.
§ 11.3
Planning
05Golden hour and blue hour calculator
Sunrise, sunset, golden hour and blue hour times for any date and place, with the sun direction, worked out on your device with no account needed.Moon phase calendar
The moon phase and illumination for every night of a month, plus the next full and new moon, for planning moonlit scenes or a dark-sky shoot.Time-lapse calculator
Plan a time-lapse from interval, shooting time and clip length, with the frame count and the card space the sequence will need.Panorama shot planner
How many frames a panorama needs for your lens, sensor, orientation, overlap and sweep, and how many degrees to turn between each one.Shot list builder
Start from a ready-made session template, edit the shots you need, tick them off on location, then copy or download the list.
§ 11.4
Photo files
06EXIF viewer
Open a photo to read its camera, lens, exposure and capture date, and see whether it carries GPS location, without uploading the file anywhere.Histogram and clipping checker
Open a photo to see its luminance and RGB histograms and highlight clipped shadows and highlights, all processed in your browser.Photo color palette extractor
Pull the dominant colors out of a photo as hex values you can copy, for mood boards, brand palettes or matching prints to a wall.Image resizer for the web
Resize and compress a photo for the web, compare quality against file size, and save it as JPEG or WebP without the file leaving your device.Aspect ratio crop tool
Crop a photo to 4:5, 1:1, 16:9 or a custom ratio with rule-of-thirds or golden-ratio guides, then save the crop at full resolution.Photo watermark tool
Add a text watermark with your choice of position, size and opacity, preview it on the photo, and save the result without uploading it.
§ 11.5
Print & business
05Photography pricing calculator
What a session has to cost to cover your gear, software, travel, editing hours and tax, and still reach the income you are aiming for.Print size and DPI calculator
The largest print a photo supports at gallery, standard or poster resolution, or the pixels a print size needs, with a warning when the ratio crops.Memory card capacity calculator
Roughly how many raw or JPEG frames fit on a card, or how much storage a shoot needs, from your file size per shot and the frames you plan.Color temperature and gel calculator
Convert between kelvin and mireds, preview the color of a light source, and find the CTO or CTB gel that matches your flash to the room.Lighting ratio calculator
Balance key and fill light in stops or by distance, see the classic portrait ratio you land on, and how much of the light on your subject is fill.