SymDiary
The SymDiary icon: a clipboard with a heart and a pencil.

Write it down when it happens.

SymDiary is a symptom diary that lives on your own computer. Note what you felt and when you felt it, then save the whole lot as a PDF to take to your next appointment with a doctor, a nurse or whoever you are seeing.

Free, open source, with no network connection opened at all.

The SymDiary window showing the recording form: a symptom, a severity, a note and the time.

Ten minutes is not long enough to remember.

By the time the appointment comes round, the details have gone soft. Was it three mornings last week or five? Did it start before the new tablets or after them? You end up saying "quite often, I think", which is the least useful sentence in the room.

A notebook solves this. SymDiary is that notebook, kept somewhere you will not leave it on a train, with the times filled in for you and a tidy document at the end.

How it works

Three things; the middle one takes care of itself.

1

Notice it, write it down

Type what you felt in your own words. Add a note if you want one and say how bad it was; leave both out if you would rather, since only the symptom is asked for. It stamps the time for you; set a different one when you are writing up something from earlier.

2

It builds up

Every entry stays, newest first. Weeks later you have the thing memory cannot give you: what happened, in order, with the times beside it.

3

Save it for the appointment

Choose the dates you want and press Save PDF. You get a document numbered page by page, which you can print, email or keep. Take the sheet to your appointment and hand it to the doctor or nurse you are seeing.

Everything you have written, in one list

Narrow it to a stretch of dates, to one symptom or to one severity when you want to look something up. Correct an entry that came out wrong; remove one you did not mean to keep.

  • It asks before it deletes and names exactly what will go.
  • Nothing is hidden from you. The list is the record; there is no other copy of it anywhere.
The history list with two recorded events, above filters for dates, symptoms and severity.

What your doctor actually sees

Your own words, grouped by symptom, with the times you wrote them down. Nothing else.

The symptom record, listing each symptom with its events, severities and notes.
  • No scores and no charts. Counting your entries is the only arithmetic it does.
  • No opinion. It never suggests what any of it might mean; it never says one thing led to another.
  • Your wording, untouched. "I took a couple of paracetamol" goes on the sheet as you typed it, not translated into medical language.
  • It says what it is. Above the first entry the sheet states that this is not a diagnosis; it is one person's own notes, printed for a healthcare professional to read.

It keeps your words, not its own

The first time you write "Tiredness" it remembers the word and offers it back the next time, so the same thing is not filed under four spellings by December. If you would rather call it something else, rename it and every entry follows.

The symptoms screen, listing Headache and Tiredness with a Rename button beside each.

It stays on your computer

Health notes are about as personal as writing gets, so SymDiary does not send them anywhere. It cannot: the program opens no network connection at all; a test in the source forbids the networking code outright.

  • No account. Nothing to sign up for, nothing to sign in to, no email address wanted.
  • No cloud and no syncing. The record is one file on your machine, where your documents are.
  • No adverts and no tracking. Nobody is counting what you write or how often you open it.
  • Yours to take away. Export the whole record to a plain file whenever you like, then read it back in.

Said plainly, because it matters: SymDiary does not encrypt the file. It is protected the way the rest of your documents are, by the account you sign in to on your own computer. If other people use that account, they can read it.

What it will not do

A program about symptoms is usually assumed to do a few of these. SymDiary does none of them, on purpose.

  • It does not diagnose, suggest conditions or recommend treatment.
  • It does not interpret your notes, score them or rank them.
  • It does not rewrite what you wrote into medical terminology.
  • It does not remind you or nag you to record anything.
  • It is not a substitute for talking to a healthcare professional; it is something to bring with you when you do.

It opens dark and there is a Light mode button in the bar; press it once and it opens that way from then on. It will not change under you because the desktop reached dusk.

Get SymDiary

Download SymDiary

Pick your platform and you have the newest release. Free and open source under the GNU GPL-3.0 licence, with no licence key and no paid tier.

Latest release
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Windows

Windows 10 or 11, 64-bit

Download for Windows

Setup program (.exe)

Windows may show a SmartScreen warning when you run it: here is why.

It installs for you alone, so Windows never asks for an administrator. Run it again later to update, repair or uninstall.

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macOS

Apple Silicon, M1 or later

Download for macOS

Disk image (.dmg)

Signed and notarized with Apple, so it opens without a fight.

Open the disk image and drag SymDiary into Applications.

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Linux

Any distribution with Flatpak

Download for Linux

Flatpak bundle (.flatpak)

It runs from your applications menu like anything else.

Install it with flatpak install symdiary.flatpak.

Supporting it