The #1 habit for mental health
Write 100 words.
Every day.
A private journal with one simple rule. No ads, no algorithms, no AI ghostwriting. Just you and your thoughts.
Wednesday, March 4
Woke up with that familiar weight again, but this time I noticed it instead of just carrying it. Funny how writing forces you to actually look at things. The meeting went fine — I was overthinking it, as usual. Took a walk after lunch, the light was different today. Softer. I want to remember that feeling.
Why journal?
Your mind needs
a private space.
Fully private
No ads, no algorithms, no one reading over your shoulder. Your journal is yours — stored securely and never shared.
100 words, no more
The constraint is the feature. A short, achievable daily goal makes journaling sustainable for years, not days.
No AI ghostwriting
We don't suggest what to write or complete your sentences. The reflection is entirely yours — that's what makes it work.
Built-in momentum
Streaks, word counts, and gentle nudges keep you showing up every day. Habit science baked in from day one.
Prominent voices
They understood
the power of writing.
Leo Tolstoy
Author — kept diaries for 63 years
"I write to understand what I think. A thought unwritten is a thought half-formed. The diary is not a record of life — it is life itself, examined."
Virginia Woolf
Author — wrote journals from age 15
"The habit of writing for my eye is good practice. It loosens the ligaments. Never mind the misses and the stumbles."
Marcus Aurelius
Roman Emperor — Meditations, 161 AD
"You have power over your mind, not outside events. Realize this, and you will find strength. The journal is where I found mine."
Carl Jung
Psychiatrist — wrote the Red Book for 16 years
"Until you make the unconscious conscious, it will direct your life and you will call it fate. Writing is how I made it conscious."
Scientifically proven
The research is clear.
Three independent meta-analyses confirm what every seasoned journaler already knows — writing works.
Reduced symptoms of depression
A meta-analysis based on 26,927 participants found that higher gratitude was significantly associated with lower depression. Daily journaling is among the most reliable ways to cultivate that habit.
https://jamanetwork.com/journals/jama/2024
Reduced psychological distress
A 2023 meta-analysis found that journaling significantly reduced symptoms of psychological distress. The effect was strongest when people wrote consistently in short, focused sessions.
https://pubmed.ncbi.nlm.nih.gov/articles/PMC10730594/
Wide-ranging benefits
A 2023 meta-analysis found that expressive writing produced statistically significant improvements across depression, generalized anxiety, quality of life, mental disorder symptoms, and post-traumatic stress.
https://www.jmir.org/2023/1/e43862
Who it's for
If you have thoughts,
this is for you.
Self-reflectors
People who want to understand themselves better and watch how they change over time.
Writers
A daily practice that sharpens craft, clears creative blocks, and captures raw material.
Language learners
Write in your target language every day. 100 words is the perfect daily challenge.
Anyone under stress
Five quiet minutes to empty your mind onto the page can genuinely change your day.
Features
Everything you need.
Nothing you don't.
Works everywhere
Sign in with Google. No install required. Your journal is accessible from any device, any browser.
Zero friction writing
No formatting, no distracting prompts, no AI suggestions. Just an empty page and your words.
Fully private
Your entries are encrypted before they leave your device. We cannot read them — even if we wanted to.
Streak & habit tracking
Visual streaks and writing patterns help you build a habit that actually sticks over time.
Designed constraints
The 100-word limit makes journaling feel focused and achievable. Constraints create freedom.
Write from anywhere
The experience is optimized for mobile — write in bed, on a walk, whenever the mood arrives.
Pricing
Simple. Fair. Honest.
Core features are free, always. Upgrade when you want more.
Pro
$2 / mo
- ✓Everything in Free
- ✓AI review & insights
- ✓Writing suggestions
- ✓Analytics & charts
- ✓Entry search
Questions
Answers.
Will my journal entries stay private?
Yes, completely. Your entries are encrypted before leaving your device. End-to-end encryption means even we cannot read your journal. Your words belong to you alone.
Is the app available for Android and iOS?
100 Words is a Progressive Web App. Install it on Android or iOS directly from your browser — no app store required. It works offline, too.
Can I export my journal entries?
Yes. Download all your data in plain text or CSV at any time. Your journal is yours — we never lock you in. Export is free on all plans.
Why exactly 100 words?
100 words is long enough to express a complete thought, and short enough to do every single day. Most people finish in 4–6 minutes. The constraint is the feature.
Does the Pro plan use AI to write for me?
No. AI in Pro only reads and reflects back — it offers insights and patterns after you've written. It never writes entries for you. The words are always yours.
Ready?
Transform your
mental OS.
Start with 100 words today. The hardest part is opening the page — we made that easy.
Start writing — it's freeNo credit card. No commitment.