June 25, 2026
How MyTools Helps You as a Personal Trainer
A catalogue of the side tasks every personal trainer juggles around the coaching, each solved by a free in-browser MyTools tool. No installs, no account.
Training clients is mostly training. Watching a deadlift and spotting the rounded back before it becomes an injury. Building a twelve-week block for someone who has never squatted. Talking a nervous beginner through their first session when they would rather be anywhere else. That is the job you signed up for.
The rest of it is files. Intake forms and liability waivers before anyone touches a barbell. Before-and-after photos from four different phones, all the wrong size for Instagram. A form-check clip a client filmed sideways. A nutrition guide too heavy to email. A motivational playlist living in eight separate tracks. None of it is coaching, and all of it lands in the same week as the 6am sessions.
Below are fourteen of those side tasks, each with the free in-browser MyTools tool that handles it. These are the kind of online tools for personal trainers that take a job off your plate without an install or an account.
The Intake Form and the Liability Waiver
Every new client arrives with the same two documents to sign: a health questionnaire and a liability waiver. Printing them, signing, scanning, and emailing back is four steps too many for a busy week, and half your clients do not own a printer anyway.
Fill PDF lets you type straight onto the form in your browser. Click into each field, type the answer, add the date, and download a clean copy. No printer, no scanner, no photographing a signed page on a kitchen table.
One Program Guide Instead of Twelve Loose Sheets
Your twelve-week block is twelve separate PDF sheets, one per week, plus a warm-up page and a stretching page. Sending a client fourteen attachments invites confusion about which week is which.
Merge PDF combines all of them into a single document in the order you choose. Drop the files in, drag week one to the top, and download one tidy program guide your client can scroll through on their phone at the gym.
A Nutrition Guide That Will Not Send
Your forty-page nutrition guide is full of meal photos, and that makes it heavy enough to bounce off an email attachment limit. The client never gets it, and you never find out until they ask where it is.
Compress PDF brings the size down without stripping out what matters. Upload the guide, let it re-compress the images, and download a version light enough to attach to any email or drop into a client portal.
A Body Composition Report You Would Rather Not Leak
A DEXA scan summary or a body-fat report is personal. Emailing it in the open means it sits unprotected in two inboxes and on a mail server in between.
Protect PDF adds a password before you send. Set a passphrase you share with the client over a separate channel, and only the two of you can open the file. It is one step between you and an awkward privacy conversation later.
Before and After, Side by Side
Twelve weeks of work deserves a single image that shows it. But the "before" shot and the "after" shot are two separate photos, and posting them one at a time loses the whole point of the comparison.
Merge Images places both into one frame, side by side, with a live preview so you can line them up before you commit. The result reads as one transformation photo, ready for the client to share or for your own page.
A Gym Photo Too Big for the Upload
The action shot from this morning came off the phone at full resolution, and the booking platform you use rejects anything over its size cap. You do not need a 4000-pixel image for a profile thumbnail.
Resize Image drops the dimensions to fit. Set the width the platform wants, watch the file size fall, and download a photo that uploads on the first try with no quality loss you will ever notice on screen.
A Client's Face You Promised to Keep Out of It
You want to post a great progress photo, but the client agreed to share the body, not the face. Their consent has limits and you intend to respect them.
Blur Image lets you blur exactly the part you need to hide. Brush over the face, leave the rest sharp, and download a version you can post without breaking the promise you made. The same trick works on a tattoo, a doorway, or anything else in the frame that identifies them.
Your Photos, Reposted Without Your Name
Transformation photos get screenshotted and reshared, and the credit rarely travels with them. By the time a good result is circulating, nobody knows it came from you.
Watermark Image stamps your name, handle, or logo across the photo before you publish. Position it, set the opacity so it sits over the image without burying it, and the attribution stays attached wherever the photo ends up.
A Headshot Against a Better Background
Your profile photo was taken against a cluttered gym wall, and the rack of dumbbells behind your head is doing you no favours. You want the subject, not the scenery.
Remove background cuts you out cleanly and drops the rest. Upload the headshot, let it isolate you against transparency, and download a clean PNG you can place on any colour or any flyer. It works on people, products, and the occasional studio dog.
Thirty Seconds of Form, Not Three Minutes
A client filmed their whole working set and sent you the three-minute clip. The fault you want to point out is in one rep around the ninety-second mark, and scrubbing back to it every time you replay is tedious.
Trim Video cuts the clip down to the seconds that matter. Drag the two handles to the rep you care about, trim away the rest, and send back a short loop the client can actually study. No editor, no re-encode, no software to install.
A Demo Clip That Fits in the Chat
You filmed a clean demo of a Bulgarian split squat to send a remote client, and the file is too big to drop into WhatsApp or a Discord channel. The message just hangs there, never sending.
Compress Video shrinks it under the cap. Pick a preset, drop the resolution a notch if you need to, and get a clip that lands in the chat on the first try and still plays sharp on a phone.
The Sideways Phone Clip
A client filmed their squat in portrait but turned the phone, so the video arrives lying on its side. Watching someone lift sideways tells you nothing about their hip drive.
Rotate Video fixes the orientation in one click. Upload the clip, turn it the right way up, and download a version that plays correctly in every player. There is no re-encode, so the quality of the original stays exactly where it was.
Eight Playlist Tracks, One Continuous Mix
Your group-class warm-up is eight separate MP3s, and the two-second gap between each one breaks the energy in the room every time a track ends. You want one continuous file you can hit play on and forget.
Merge audio stitches them into a single track in the order you set. Arrange the eight files, merge them, and download one mix that runs start to finish without the dead air between songs.
A Motivational Track Too Quiet for the Speaker
The intro clip you play at the start of a bootcamp was recorded low, and on the park's portable speaker it disappears under the morning traffic. Nobody at the back can hear it.
Boost Audio Volume pushes the level up without the distortion that usually comes with it. Add the gain you need with the brick-wall limiter on, and the track plays at a proper listening level on the speaker, no crackle, no clipping.
Fourteen forms, photos, clips, and tracks. None of it is coaching, and all of it sat between you and the part of the week you actually care about.
With the admin handled in a browser tab instead of a desktop app you do not own, the time goes back where it belongs: on the gym floor, watching a client hit a lift they could not do twelve weeks ago. That is the part that mattered when you decided to train people for a living.