I work across English and Chinese codebases — internal docs, commit messages, customer support replies — and for a long time my Chinese typing speed was a real bottleneck. I could read characters fine, but typing them in pinyin felt like four times slower than English. That's a non-trivial tax when you're shipping every day.

This post is the short version of how I fixed it. Tools, not theory.

The problem with "just practice more"

Most generic typing tutors don't work for pinyin input. Three reasons:

1. They test letters, not characters. Pinyin is a multi-stage process: type letters → the IME shows candidates → press number / space to commit. A lesson that drills qwerty doesn't teach your right pinky to slap 5 to commit the fifth candidate.
2. They have no failure model. When I mistype nèng instead of néng, I want the trainer to throw it back at me five minutes later, not move on. Most don't.
3. They use random word lists. I don't write the word "枇杷" in code reviews. I write "数据库", "重构", "性能优化". A trainer that doesn't know what corpus you actually live in is mostly noise.

So I made a list of what I'd actually want from a tool:

• IME-aware: the test ends when the character is committed, not when the pinyin is typed
• Spaced repetition on the misses
• Custom corpora — paste in the text I actually need to type fluently
• Browser-only, no install, runs on a Chromebook

What I ended up using

After about two weeks of poking at things, I settled on Mandarin typing practice. It checks all four boxes above. The design isn't fancy — it's honestly closer to a CLI than a SaaS — and that's exactly what I wanted. I open it on a second monitor, do 10–15 minutes during my morning coffee, and that's the whole ritual.

Two things I'd flag for fellow devs picking this up:

Use real text, not the default lessons. The built-in lessons are fine for the first couple of sessions, but the second you paste in a chunk of your actual writing — a recent commit message, a Slack reply you sent yesterday, a paragraph from your team's README — the trainer becomes way more useful. You're drilling the exact characters and bigrams you'll hit in real life.

Trust the misses list. It's tempting to retry until you "win" a session. Don't. Let the failures pile up, and let the spaced repetition queue them back. After about a week, the muscle-memory transfer starts showing up in your editor. I noticed it first when I stopped pausing before "请" and "谢谢" in customer replies.

A quick note on input methods

If you're a dev who's been ignoring this whole topic because "I'll just use Google Translate" — fair, but consider that the friction adds up. Every context switch out of your editor is a few seconds plus a derail. Being able to type 中文 inline at near-English speed compounds across a year.

A few setup tips that took me longer than they should have to figure out:

• macOS Pinyin (Simplified) is good enough; you don't need Sogou or RIME unless you have specific reasons. Sogou phones home a lot. RIME is great if you want full control but it's a project unto itself.
• Turn off auto-correct in your IDE for .md files if you write Chinese in markdown. Some spell-check extensions mangle pinyin candidates mid-commit.
• Bind your IME toggle to a single key, not Ctrl-Space. I use Caps Lock via Karabiner. The fewer modifier keys involved, the more you'll actually switch.

How long until it pays off

I tracked rough numbers because I'm that kind of nerd:

• Day 0: ~22 characters / minute (CPM), which is humiliatingly slow
• Day 14: ~45 CPM
• Day 30: ~70 CPM
• Day 60: ~95 CPM, roughly where my English typing is

15 minutes a day. The biggest jump was between days 7 and 14 — that's when the IME-commit motion stopped requiring conscious thought. Nothing magical; this is just spaced repetition working as advertised.

TL;DR

If you're a dev who reads Chinese but types it slowly, fix it. Use a trainer that's IME-aware (this is the non-negotiable feature), feed it your own text, and don't skip the misses queue. 15 minutes a day, two months, done.

Tools I mentioned: typingmandarin.com for the trainer itself; macOS Pinyin (Simplified) as the IME; Karabiner for the Caps Lock binding.

Happy to answer questions on setup if you're trying this. Particularly curious if anyone has solved the same problem with Anki + a custom card type — I considered that route and bounced off the friction, but maybe I missed a trick.