Edit Gradebook CSV Files Online for Teachers
Upload your gradebook CSV from Canvas, Blackboard, or Google Classroom. Edit grades, fix student data, and download the corrected file.
Learning management systems let you export gradebooks as CSV files — but editing those files in Excel often introduces formatting problems. Student IDs get converted to scientific notation. Assignment column headers break. Date formats change unexpectedly. When you re-import the file, your LMS rejects it.
This CSV editor is designed for clean, reliable CSV editing. Upload your gradebook export, make your corrections in a simple spreadsheet view, and download a properly formatted CSV ready for import. No auto-formatting surprises, and no student data ever leaves your browser.
Features
Clean Spreadsheet View
See all students, assignments, and grades in an editable table without Excel's auto-formatting problems.
FERPA-Friendly
Student data is processed entirely in your browser. No grades, names, or student IDs are sent to any server.
LMS-Ready Export
Download a clean CSV that imports back into Canvas, Blackboard, or Google Classroom without formatting errors.
How It Works
Download the gradebook CSV from Canvas, Blackboard, Google Classroom, or your institution's LMS.
Drop the CSV file into the tool to view grades in a spreadsheet.
Edit individual grades, add or remove columns, fix student data, and make batch adjustments.
Save the corrected CSV and import it back into your LMS.
Common Gradebook CSV Editing Tasks
Teachers and instructors frequently need to edit gradebook data outside of their LMS. Common scenarios include: adjusting grades after a re-grade or curve, merging grades from external assessments or third-party tools, preparing grade data for department reports, fixing import errors from student information systems, and creating custom grade exports for advisors or administrators.
The challenge with standard spreadsheet software is auto-formatting. Excel notoriously converts student IDs to numbers (dropping leading zeros or switching to scientific notation), changes date formats, and modifies numeric precision. These changes cause import failures and data corruption when the file returns to the LMS.
This tool treats all data as text by default, preserving student IDs, dates, and numeric values exactly as they appear in the original export.
Practical Checklist
Start with the right input
Bring the code, data, markup, URL, or technical file that matches this use case. For edit gradebook csv files online for teachers, a focused source gives CSV Editor a clearer job and makes the result easier to review.
Use the result in context
Verify formatting, edge cases, and generated output before pasting it elsewhere, then match the output to the final destination before exporting or copying it.
Move it into your workflow
Once the output is ready, copy or download the result for your repo, ticket, documentation, or handoff. Keep the original source nearby so you can rerun the tool if requirements change.
Frequently Asked Questions
Related Tools
Compare two versions of any code file side by side with syntax highlighting for 50+ languages. Changed lines are highlighted in green and red — like a lightweight code review tool.
Paste two versions of any text and instantly see every change highlighted, character by character. Perfect for proofreading, comparing drafts, and spotting edits between two documents.
Paste a public GitHub repository URL and get the entire codebase exported as a single plain-text document. Ideal for feeding a project's code into an AI assistant like ChatGPT or Claude.
More Ways to Use CSV Editor
Looking for the full-featured tool?
View CSV Editor