Jake Manger
@jakemanger.bsky.social
A broke PhD student turned indie developer building software like a madman
https://howtoconvert.co ($5k/mo)
https://pictiler.com ($30/mo)
+2 failures
All my projects 👉 https://merlinsbeard.ai
https://howtoconvert.co ($5k/mo)
https://pictiler.com ($30/mo)
+2 failures
All my projects 👉 https://merlinsbeard.ai
Pinned
Jake Manger
@jakemanger.bsky.social
· Aug 23
Every “free” file converter online = your files sent to some random server.
So I made my own. Runs locally as an app on Mac, Windows and Linux.
Now 1,100 users use it for 3,742 types of conversions.
So I made my own. Runs locally as an app on Mac, Windows and Linux.
Now 1,100 users use it for 3,742 types of conversions.
When you know you’re going to have a productive day
January 30, 2026 at 3:09 PM
When you know you’re going to have a productive day
I was sick of sending my files to sketchy sites on Google.
And sick of looking up how to use command line tools every time I needed to convert a file.
So, I made a drag and drop app that does everything locally.
You can check it out here howtoconvert.co
And sick of looking up how to use command line tools every time I needed to convert a file.
So, I made a drag and drop app that does everything locally.
You can check it out here howtoconvert.co
How to Convert
Convert almost any file locally - nothing gets uploaded to the cloud. Do 3985 document, video, image, audio & email conversions with one app for Mac, Windows & Linux.
howtoconvert.co
January 29, 2026 at 11:33 AM
I was sick of sending my files to sketchy sites on Google.
And sick of looking up how to use command line tools every time I needed to convert a file.
So, I made a drag and drop app that does everything locally.
You can check it out here howtoconvert.co
And sick of looking up how to use command line tools every time I needed to convert a file.
So, I made a drag and drop app that does everything locally.
You can check it out here howtoconvert.co
1 year ago, I made an app that converts almost any file to any other file locally
Today, over 2,200 people in 77 countries are using it.
🇺🇸 🇬🇧 🇩🇪 🇦🇺 🇨🇦 🇧🇷 🇳🇱 🇫🇷 🇮🇹 🇪🇸 🇲🇽 🇨🇭
Today, over 2,200 people in 77 countries are using it.
🇺🇸 🇬🇧 🇩🇪 🇦🇺 🇨🇦 🇧🇷 🇳🇱 🇫🇷 🇮🇹 🇪🇸 🇲🇽 🇨🇭
January 29, 2026 at 11:33 AM
1 year ago, I made an app that converts almost any file to any other file locally
Today, over 2,200 people in 77 countries are using it.
🇺🇸 🇬🇧 🇩🇪 🇦🇺 🇨🇦 🇧🇷 🇳🇱 🇫🇷 🇮🇹 🇪🇸 🇲🇽 🇨🇭
Today, over 2,200 people in 77 countries are using it.
🇺🇸 🇬🇧 🇩🇪 🇦🇺 🇨🇦 🇧🇷 🇳🇱 🇫🇷 🇮🇹 🇪🇸 🇲🇽 🇨🇭
Reposted by Jake Manger
I’ve been working on my file converter app
How to Convert for a year now
Here’s what it does:
→ 3,985 video, image, audio, email & document conversions
→ Files never leave your computer. Runs 100% locally
→ Works on Mac, Windows, and Linux
How to Convert for a year now
Here’s what it does:
→ 3,985 video, image, audio, email & document conversions
→ Files never leave your computer. Runs 100% locally
→ Works on Mac, Windows, and Linux
January 27, 2026 at 11:11 AM
I’ve been working on my file converter app
How to Convert for a year now
Here’s what it does:
→ 3,985 video, image, audio, email & document conversions
→ Files never leave your computer. Runs 100% locally
→ Works on Mac, Windows, and Linux
How to Convert for a year now
Here’s what it does:
→ 3,985 video, image, audio, email & document conversions
→ Files never leave your computer. Runs 100% locally
→ Works on Mac, Windows, and Linux
Reposted by Jake Manger
Used this a few times, it's great.
Now where do I get a real alternative to Google Docs and Sheets?
Now where do I get a real alternative to Google Docs and Sheets?
I’ve been working on my file converter app
How to Convert for a year now
Here’s what it does:
→ 3,985 video, image, audio, email & document conversions
→ Files never leave your computer. Runs 100% locally
→ Works on Mac, Windows, and Linux
How to Convert for a year now
Here’s what it does:
→ 3,985 video, image, audio, email & document conversions
→ Files never leave your computer. Runs 100% locally
→ Works on Mac, Windows, and Linux
January 27, 2026 at 8:10 PM
Used this a few times, it's great.
Now where do I get a real alternative to Google Docs and Sheets?
Now where do I get a real alternative to Google Docs and Sheets?
Will be posting here when it’s available so be sure to follow!
January 28, 2026 at 2:58 AM
Will be posting here when it’s available so be sure to follow!
Yes, I’ve had quite a few requests for them and actually am working on adding them as we speak!
January 27, 2026 at 2:24 PM
Yes, I’ve had quite a few requests for them and actually am working on adding them as we speak!
→ $29 once. No subscription (cheaper if you’re in a lower income country)
Try it free in your browser first free and locally too
howtoconvert.co
Try it free in your browser first free and locally too
howtoconvert.co
How to Convert
Convert almost any file locally - nothing gets uploaded to the cloud. Do 3985 document, video, image, audio & email conversions with one app for Mac, Windows & Linux.
howtoconvert.co
January 27, 2026 at 11:11 AM
→ $29 once. No subscription (cheaper if you’re in a lower income country)
Try it free in your browser first free and locally too
howtoconvert.co
Try it free in your browser first free and locally too
howtoconvert.co
I’ve been working on my file converter app
How to Convert for a year now
Here’s what it does:
→ 3,985 video, image, audio, email & document conversions
→ Files never leave your computer. Runs 100% locally
→ Works on Mac, Windows, and Linux
How to Convert for a year now
Here’s what it does:
→ 3,985 video, image, audio, email & document conversions
→ Files never leave your computer. Runs 100% locally
→ Works on Mac, Windows, and Linux
January 27, 2026 at 11:11 AM
I’ve been working on my file converter app
How to Convert for a year now
Here’s what it does:
→ 3,985 video, image, audio, email & document conversions
→ Files never leave your computer. Runs 100% locally
→ Works on Mac, Windows, and Linux
How to Convert for a year now
Here’s what it does:
→ 3,985 video, image, audio, email & document conversions
→ Files never leave your computer. Runs 100% locally
→ Works on Mac, Windows, and Linux
Got a Kindle Colorsoft (colour e-ink) and it’s amazing.
About 4 years ago I remember repeatedly looking up when colour e-ink was coming out. A reflective screen is so much better on the eyes for reading. Amazon have changed to colour well!
Currently reading My Indie Book by @tdinh_me and loving it
About 4 years ago I remember repeatedly looking up when colour e-ink was coming out. A reflective screen is so much better on the eyes for reading. Amazon have changed to colour well!
Currently reading My Indie Book by @tdinh_me and loving it
January 26, 2026 at 9:29 AM
Got a Kindle Colorsoft (colour e-ink) and it’s amazing.
About 4 years ago I remember repeatedly looking up when colour e-ink was coming out. A reflective screen is so much better on the eyes for reading. Amazon have changed to colour well!
Currently reading My Indie Book by @tdinh_me and loving it
About 4 years ago I remember repeatedly looking up when colour e-ink was coming out. A reflective screen is so much better on the eyes for reading. Amazon have changed to colour well!
Currently reading My Indie Book by @tdinh_me and loving it
Here's it in action
January 25, 2026 at 8:23 AM
Here's it in action
Spent some time updating my browser-only photomosaic generator.
Fast, private, no signup.
pictiler.com
Fast, private, no signup.
pictiler.com
PicTiler
Create beautiful photomosaics with a browser-based tool. No uploads required - everything processes directly in your browser.
pictiler.com
January 25, 2026 at 8:23 AM
Spent some time updating my browser-only photomosaic generator.
Fast, private, no signup.
pictiler.com
Fast, private, no signup.
pictiler.com
Reposted by Jake Manger
I use alternativeto.net all the time when I search "alternative to X"
Amazing to see my app in one of their posts!
Amazing to see my app in one of their posts!
A universal file converter that runs locally on your device and doesn't send your files to sketchy servers
January 25, 2026 at 1:23 AM
I use alternativeto.net all the time when I search "alternative to X"
Amazing to see my app in one of their posts!
Amazing to see my app in one of their posts!
Reposted by Jake Manger
A universal file converter that runs locally on your device and doesn't send your files to sketchy servers
January 24, 2026 at 3:17 PM
A universal file converter that runs locally on your device and doesn't send your files to sketchy servers
Reposted by Jake Manger
I built a Mac and Windows app that lets you convert almost any file locally.
It's all built by 'lil ol me me, in Perth, Western Australia.
To celebrate Australian day 🇦🇺, it's 15% off!
It's all built by 'lil ol me me, in Perth, Western Australia.
To celebrate Australian day 🇦🇺, it's 15% off!
January 23, 2026 at 8:22 AM
I built a Mac and Windows app that lets you convert almost any file locally.
It's all built by 'lil ol me me, in Perth, Western Australia.
To celebrate Australian day 🇦🇺, it's 15% off!
It's all built by 'lil ol me me, in Perth, Western Australia.
To celebrate Australian day 🇦🇺, it's 15% off!
You can get the app at howtoconvert.co
It’s a universal file converter that runs locally on your device. No uploads, no servers.
Supports 3,985 conversions across documents, video, audio, images, and email formats.
It’s a universal file converter that runs locally on your device. No uploads, no servers.
Supports 3,985 conversions across documents, video, audio, images, and email formats.
How to Convert
Convert almost any file locally - nothing gets uploaded to the cloud. Do 3985 document, video, image, audio & email conversions with one app for Mac, Windows & Linux.
howtoconvert.co
January 23, 2026 at 8:43 AM
You can get the app at howtoconvert.co
It’s a universal file converter that runs locally on your device. No uploads, no servers.
Supports 3,985 conversions across documents, video, audio, images, and email formats.
It’s a universal file converter that runs locally on your device. No uploads, no servers.
Supports 3,985 conversions across documents, video, audio, images, and email formats.
I built a Mac and Windows app that lets you convert almost any file locally.
It's all built by 'lil ol me me, in Perth, Western Australia.
To celebrate Australian day 🇦🇺, it's 15% off!
It's all built by 'lil ol me me, in Perth, Western Australia.
To celebrate Australian day 🇦🇺, it's 15% off!
January 23, 2026 at 8:22 AM
I built a Mac and Windows app that lets you convert almost any file locally.
It's all built by 'lil ol me me, in Perth, Western Australia.
To celebrate Australian day 🇦🇺, it's 15% off!
It's all built by 'lil ol me me, in Perth, Western Australia.
To celebrate Australian day 🇦🇺, it's 15% off!
Learn more at howtoconvert.co
It’s a universal file converter that runs locally on your device. No uploads, no servers.
Supports 3,985 conversions across documents, video, audio, images, and email formats.
It’s a universal file converter that runs locally on your device. No uploads, no servers.
Supports 3,985 conversions across documents, video, audio, images, and email formats.
How to Convert
Convert almost any file locally - nothing gets uploaded to the cloud. Do 3985 document, video, image, audio & email conversions with one app for Mac, Windows & Linux.
howtoconvert.co
January 22, 2026 at 9:42 AM
Learn more at howtoconvert.co
It’s a universal file converter that runs locally on your device. No uploads, no servers.
Supports 3,985 conversions across documents, video, audio, images, and email formats.
It’s a universal file converter that runs locally on your device. No uploads, no servers.
Supports 3,985 conversions across documents, video, audio, images, and email formats.
I was tired of sending my files to random sites just to change formats.
So I made an app that converts everything locally.
Just added this new audio and video trimmer to it
So I made an app that converts everything locally.
Just added this new audio and video trimmer to it
January 22, 2026 at 9:34 AM
I was tired of sending my files to random sites just to change formats.
So I made an app that converts everything locally.
Just added this new audio and video trimmer to it
So I made an app that converts everything locally.
Just added this new audio and video trimmer to it
Here’s the latest update for my file converter app bsky.app/profile/jake...
I built a PDF compressor that runs 100% locally.
Every popular option (SmallPDF, iLovePDF) uploads your files to their servers.
Worse: they all use the same service behind the scenes anyway (pdf-tools).
I wanted drag → drop → done, on my own machine.
So I shipped it.
Every popular option (SmallPDF, iLovePDF) uploads your files to their servers.
Worse: they all use the same service behind the scenes anyway (pdf-tools).
I wanted drag → drop → done, on my own machine.
So I shipped it.
January 22, 2026 at 2:42 AM
Here’s the latest update for my file converter app bsky.app/profile/jake...
Marketing done for the day ✅
January 22, 2026 at 2:41 AM
Marketing done for the day ✅
first time i've seen vscode and not cursor in a post for a while 😂
January 21, 2026 at 11:40 PM
first time i've seen vscode and not cursor in a post for a while 😂
I added it to my file converter app.
If you already have it, the update is free.
howtoconvert.co
What should I make run locally next?
If you already have it, the update is free.
howtoconvert.co
What should I make run locally next?
How to Convert
Convert almost any file locally - nothing gets uploaded to the cloud. Do 3985 document, video, image, audio & email conversions with one app for Mac, Windows & Linux.
howtoconvert.co
January 21, 2026 at 9:15 PM
I added it to my file converter app.
If you already have it, the update is free.
howtoconvert.co
What should I make run locally next?
If you already have it, the update is free.
howtoconvert.co
What should I make run locally next?