15 tools · Computed in your browser

Free Tools for Photographers

15 small, free, no-signup tools for people who shoot for a living or want to. Every one of them runs entirely in your browser: no account, nothing uploaded, no email address in exchange for an answer.

Interactive 3D
Focus Lab: The Plane of Focus in 3D

A working lens on an optical bench, pulled apart. Turn the focus ring and watch the plane of focus slide through a tiny scene, the light rays meet on the sensor or spread into blur discs, and the sharp zone grow as you stop down.

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Nothing uploaded
Best Shot Picker

Drop a folder of JPEG or RAW files and see the sharpest frame of every burst, the soft and badly exposed shots, and a keeper list you can copy. Runs in your browser.

Open tool DF-1
Live preview
Depth of Field & Lens Simulator

Move focal length, aperture and distance and watch the framing and background blur change in real time. Gives you near and far focus limits, total depth of field and the hyperfocal distance.

Open tool SS-1
Visual
Sensor Size Comparison

Every sensor format drawn to scale on top of each other, from medium format down to a phone. Shows exactly what crop factor does to your field of view, your aperture and your depth of field.

Open tool CC-1
174 bodies
Camera Comparison Tool

Put up to three camera bodies side by side across sensor, resolution, burst speed, stabilisation, RAW format and file size, then see what the difference actually means for a real shoot.

Open tool CF-1
6 questions
Which Camera Should I Buy?

Answer six questions about budget, what you shoot and what you care about, and get three matched bodies from a 174-camera database with the reasoning for each one written out.

Open tool PR-1
No signup
Photography Pricing Calculator

Work backwards from the salary you want to the day rate you have to charge, with your real overheads, unpaid admin hours, tax and holiday built in. Most photographers undercharge by a factor they can see here.

Open tool ST-1
Per-camera
Storage & Culling Time Calculator

How many RAW files fit on your cards and drives, what a year of shoots costs to back up properly, and how many hours the culling pass takes before you have even opened an editor.

Open tool GH-1
Any location
Golden Hour & Blue Hour Calculator

Sunrise, sunset, both golden hours, both blue hours and full darkness for any place and date. Calculated in your browser, so it works with no account and no location tracking.

Open tool PS-1
Instant
Print Size & DPI Calculator

Turn a pixel count into the biggest print that still looks sharp, at any viewing distance, and see how much of the frame you lose cropping to 8x10, square, or any other ratio.

Open tool AE-1
500 & NPF rules
Astro Exposure Calculator (500 & NPF)

The longest shutter speed you can use before the stars trail, by both the old 500 rule and the far stricter NPF rule that accounts for your actual pixel pitch and aperture.

Open tool TL-1
Both directions
Time-lapse Interval Calculator

Set the interval and shooting time to get your clip length, or set the clip length you need and get the interval. Includes frame count, card space and how long the shoot will actually keep you standing there.

Open tool SL-1
Printable
Shot List Generator

Build a shoot-day checklist for weddings, portraits, real estate, newborns, events or products from a library of real shots, then print it or copy it into your notes app.

Open tool EX-1
Nothing uploaded
EXIF Viewer

Drop in a photo and read every setting the camera recorded: body, lens, shutter, aperture, ISO, focal length and more. The file never leaves your browser.

Open tool PB-1
No signup
Vibe Code Your Portfolio

Pick a design direction reverse-engineered from real photographer portfolios, watch a live preview build itself, and walk away with a detailed prompt for your AI coding app.

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Why these exist

Most photography calculators on the web are a form, a submit button and four adverts, and half of them are wrong: they quote the 500 rule at a 61-megapixel sensor, they treat 300dpi as a law of physics, and they tell you what to charge without knowing your overheads. These were built to answer the same questions properly, and to show their working, because a number you cannot interrogate is not much use when the answer surprises you.

Three principles run through all of them. They compute rather than quote: sensor geometry, pixel pitch, resolution and print sizes are derived from first principles, so they cannot drift out of date. They run in your browser: nothing is uploaded, there is no account, and the EXIF viewer in particular works with your network cable unplugged. They say what a number means, not just what it is, because "0.58m of depth of field" is only useful once you know it means an eye will be sharp and the ear behind it will not.

Where the camera data comes from

Several of these tools draw on a database of 174 camera bodies from Canon, Sony, Nikon, Fujifilm, Panasonic, Olympus, OM System, Pentax, Leica and Ricoh, covering 2012 to 2024. Sensor dimensions, crop factor, pixel dimensions, pixel pitch and maximum print sizes are calculated from the sensor format and megapixel count rather than copied from a spec sheet, so they are internally consistent across every body. Burst speed, in-body stabilisation, lens mount and the indicative used-market price bands are curated reference data, and the price bands are deliberately wide because condition moves a used price more than the model name does.

If a camera you use is missing, or a figure looks wrong, tell us and it gets fixed.

What imagic is, since you are here

These tools are free and unconnected to anything you have to buy. The reason they exist on this domain is that imagic makes a desktop application for the part of photography nobody enjoys: culling. It scores focus, exposure, expression and near-duplicate frames across a whole shoot, locally on your own machine with nothing uploaded, and hands you the keepers to approve. The storage and culling calculator above will tell you roughly how many hours a year that would give you back.

Try the thing the tools keep referring to

imagic culls, scores and batch-edits a full shoot locally on your machine. Nothing uploaded, nothing to configure. Free 500-export trial, no card required.

Start Free Trial See what it does