Three of them are live: a Strava analytics dashboard, a browser-based bike fit analyzer, and a Latin-to-Balinese script transliterator. All of them run in your browser, all of them are free, and none of them upload what you put into them.
Things I built because I wanted them to exist. The web tools are free and run client-side.
A personal Strava analytics dashboard: stats, charts, a ride heatmap, segment PRs, gear tracking, trophies, and shareable 9:16 story cards for your rides. Connects to your own Strava account with your permission — your tokens and activities stay in your browser.
Upload a side-on video of yourself pedalling and get automatic joint-angle analysis (knee, hip, back) graded against bike-fitting research, to help you fine-tune saddle height and reach. The video is analyzed on your device and never uploaded. It is not a professional bike fit and not medical advice.
An analysis of the academic-track entry scores at all 88 public high schools across Bali's nine districts, ranked into tiers so a student can see where they realistically stand. It also makes the regional gap hard to look away from — the distance between Denpasar's schools and those on the outer islands is not small.
An AI and IoT platform for Indonesian farmers: soil analysis, crop recommendations, plant disease detection, real-time nutrition monitoring, and a route to market for seed and fertiliser supply. Built with a team, out of the conviction that smallholders deserve the same decision-making tools that large operations already have.
Converts Latin text into Balinese script in real time, with Sanskrit support and V=W equivalency — an educational tool for reading, writing and preserving Aksara Bali.
I am the person behind the web side of Studio Five Media Group — the products below, and the sites for each of the group's companies, which I build and keep running.
A wedding planning dashboard for couples: checklists, contracts, payment tracking, vendor management and a deliverables tracker, all in one place instead of scattered across email and spreadsheets.
A client portal that answers the question every couple asks after the wedding: where are my photos? Clients sign in with their email and see live editing progress, the production stage each deliverable is in, and estimated delivery dates — which cut a lot of status emails out of the studio's week.
A wedding website builder for Singapore couples — RSVPs, guest lists, galleries and gift registries behind one link. It ships with 37 templates, including themes for Malay, Chinese, Indian, Sikh, Eurasian and Peranakan weddings.
The site for a one-day business summit in Singapore for founders and operators, built around the speaker lineup and ticket sales.
Studio Five Group
The group site tying all of the companies below together
Studio Five Weddings
Wedding photography and film
Studio Five Spaces
24/7 photo, video and podcast studio rental in Singapore
Studio Five Corp
Corporate media agency — video, photo, design, web
Studio Five Pixels
Family, maternity, graduation and corporate portraits
Straits Bunkering
Marine fuel supply across Singapore and Malaysian waters
Straits Bunkering DMCC
The Dubai arm, serving vessels across the Gulf
Printhouse
Online printing — cards, brochures, albums, canvas
Eng Hua
Singapore bunkering company, supplying marine fuel since 1969
Sirius Oil International
Marine fuel logistics, chartering and vessel management
Azfian Anuar
Portfolio for a documentary and corporate photographer
Muslim-Owned Enterprise
Directory of Muslim-owned businesses in Singapore, by the Singapore Malay Chamber of Commerce & Industry
CIRED Malaysia
The Malaysia chapter of CIRED, the international conference on electricity distribution
Sabhindo Consulting
Business licensing and regulatory compliance for companies operating in Indonesia
Udiana Silver Class
Silver jewellery making workshops in Celuk, Bali
Emas Estate
Boutique agency for villa, land and hotel investment in Bali
Vast Bali
Project management for real estate development across Bali
The short version.
I am Doni Wirawan. I am the person behind the web side of Studio Five Group: the planning dashboards, delivery trackers and website builder its wedding clients use, and the sites for each company in the group — Weddings, Spaces, Corp, Pixels and Printhouse — along with the marine fuel side: Straits Bunkering in Singapore and Dubai, Eng Hua and Sirius Oil. I build them, and I keep them running.
Before that I graduated from Bangkit Academy — the career-readiness programme led by Google and backed by GoTo, Tokopedia and Traveloka — where my team and I built Terrafarms — an AI and IoT platform that gives farmers soil analysis, crop recommendations and disease detection. I also founded the Google Developer Student Club at INSTIKI and led it as its first chapter lead, which is still the thing I am proudest of: it outlived my involvement, which is the only real test of whether you built something or just ran it.
The rest of the time I build small free tools for the things I care about: my own riding data with Ascent, my own bike fit with Bike Fit Analyzer, and the Balinese script I grew up around with Aksara Bali. They all run in the browser, they are all free, and none of them upload what you put into them. That is a deliberate choice, not a limitation — I would rather ship something small that respects you than something big that does not.
The reason two of these apps exist.
I ride road and gravel around Bali — early mornings, long climbs, and the odd sprint for a segment I have no business chasing. It is where I do my best thinking, and it is also where most of my ideas for tools come from.
Ascent started because I wanted to see my own Strava data the way I actually think about it. The Bike Fit Analyzer started because I kept fiddling with my saddle height and wanted numbers instead of guesses. If you ride too, both of them are free — and I would genuinely like to know what they get wrong.
Pulled from my Goodreads shelves.
Say hello, or tell me what to fix.