Bulk grading

Grade a whole class
in minutes.

Upload a class set, typed or handwritten. Zippy reads every script against your rubric and drafts skills-specific feedback. You approve every word before a student sees it.

A class set graded in one pass
Handwriting transcribed automatically
Graded to your rubric
You approve every word
A happy teacher grading a stack of student essays

See the feedback for yourself.

Paste one piece of writing and see the feedback a student actually gets back.

Calibrated to MOE / PSLE writing. Real feedback from the live grader.


High-quality feedback

The feedback you’d write yourself, if you had the hours.

Specific, kind, and tied to your rubric. Zippy gives skills-specific feedback that tells you where and what to fix, on every single piece.

Prompt · Write about a time you had to make an honest choice.

The rain had just stopped when I noticed the leather wallet wedged beneath the bench, its corners frayed and soft with age. For a long moment I just stared at it, while the evening crowd flow past me, umbrellas dripping, nobody slowing to look down.Tense slip: flow → flowed. It creeps in when your sentences run long, so reread those.

I picked it up and felt the weight of the coins shifting inside. A small, stubborn part of me, the part that had been saving for a new football for weeks, whispered that nobody would ever know.

My fingers tightened around the strap of my bag.Lovely, you’re showing the nerves instead of naming them. Push once more: what was the worst thought crossing your mind? I knew exactly what the right thing was. I just hadn’t expected it to feel so heavy, standing there with a stranger’s whole evening in my hands.

So I carried it to the guard room at the void deck, past the snack shop I usually stopped at, and slid it across the counter before I could change my mind.

When the owner finally arrived, breathless and grateful, he pressed a folded note into my hand. I shook my head and walked off before he could insist, my pockets empty but somehow lighter.Outstanding closing image, “empty but lighter” earns the whole story. Your strongest line.

Zippy’s feedback

You build a vivid, believable scene and your closing image lands the theme beautifully. To lift it further, hold the moment of temptation a beat longer before you resolve it, and watch tense agreement in your longer sentences.

Trait assessment
Ideas: Stay on themeExemplary
The piece stays tightly focused on the honest choice from start to finish. Every beat earns its place.
Ideas: Deepen a key momentSatisfactory
The moment of temptation is clear, but it resolves a little fast. Hold it a beat longer before the decision.
Conventions: Sentence structureProficient
Varied, well-controlled sentences. The longer ones carry the tension without losing the reader.
Conventions: Tense agreementSatisfactory
Mostly accurate, with one slip ("flow" should be "flowed") inside a longer sentence.
ContentProficient
14/18
LanguageSatisfactory
11/18
Yours to edit before any student sees it.

Real teachers, real classrooms

What teachers are saying.

“Built by people who understand our classrooms and the local context.”

The bulk marking is particularly useful for handling large batches of scripts. By streamlining grading, it lets us redirect our time towards supporting student progress and closing learning gaps.

MC
Ms ChongPrimary school English teacher

“It supports marking well while still letting teachers stay in control of the feedback.”

Bulk grading makes handling a full class set of scripts much more manageable. The tracking feature gives a clear picture of each student’s progress, and the end-of-semester summary makes it easier to identify areas to focus on.

MK
Mdm KohPrimary school English teacher

“It writes the kind of feedback I’d write myself, just faster.”

Comments pick up on specific phrasing, ideas, and structural choices in each piece of writing. I rarely need to rewrite the AI’s suggestions, just refine them to match my own voice.

MG
Miss GPrimary school English teacher

You stay in control

AI drafts it. You have the final say.

Zippy does the reading and drafts the feedback. Every word is yours to change, and nothing reaches a student without your say-so.

  • Edit anything. Change, trim or rewrite any comment before a student ever sees it.
  • Your standard, not a generic one. It grades to your rubric; override any mark, one tap to re-grade.
  • Release when ready. Nothing is published until you approve it, and every approval is logged.
A teacher confidently reviewing and approving Zippy's feedback

More than a mark

Grading that does more than score.

Per-skill diagnosis, batch marking, and reports that turn a whole class set into a teaching plan.

app.heyzippy.io / grading / skills
Per-skill trait assessment with bands and notes
app.heyzippy.io / bulk-grade
Bulk grading a whole class with live progress
app.heyzippy.io / reports / class-summary
Class Summary Report
Primary 5B · Narrative Writing · 28 scripts
Class avg24.6/36
Strengths
  • Vivid, original story ideas
  • Strong vocabulary range
  • Confident dialogue
Areas of growth
  • Structure after paragraph 2
  • Linking paragraphs smoothly
  • Stronger, earned endings
Common errors
  • Tense slips inside dialogue 17 students
  • Comma splices 11 students
  • Subject-verb agreement 8 students
Suggested next lesson: paragraphing & tense control in dialogue
app.heyzippy.io / analytics / benchmarking
Standardisation
Primary 5 · Narrative Writing
One rubric standard
Same script, same score
26/36
Anchor script
Content 14 · Language 12
Ms Chong · 5 Resilience26 / 36
Mdm Koh · 5 Respect26 / 36
Miss G · 5 Integrity26 / 36
Within-class moderation5 Resilience · 28 scripts
Developing Proficient Accomplished Borderline
2 borderline scripts flagged for a second look before any score is released.

Your data stays yours
Scoped to you

Every student, class, and piece of work is walled off per organisation.

You decide what’s shared

Nothing is published without a teacher’s approval.

Full audit trail

Every grade and every approval, logged.

Zippy CLI & coding-agent skill

Publish content from your terminal, or let your AI agent do it.

The zippy CLI pushes courses, lessons, and rubrics straight from local files. Install the skill and Claude Code, Cursor, or Codex can author and publish for you.


Grade your first class this week.

Free to try, no account needed. The paste box is right at the top whenever you’re ready.