Eraser vs Gleek (2026): which should you pick?

Pick Eraser if

• Fits if you're an engineer who'd rather type a diagram than drag boxes around
• Works for teams whose diagrams have to follow the code, since it reads a connected Git repo

Look elsewhere if

• Pricey if you just want a team whiteboard, at $45 a member a month billed annually or $60 monthly
• Tight if you're staying free, with 3 files, 3 AI credits, 7 days of history, no private files and no GitHub integration
• Watch out: AI past your monthly credits is $60 per 100, and API calls are billed on top of the plan
• Skip it if you need SAML SSO for a small team, as it's on Business Plus, $42 a member a month and sold from 10 seats
• Not for you if you want a desktop or phone app, as Eraser only runs in a browser

Pick Gleek if

• Fits if you write diagrams as text and want them saved next to your code in Git
• Works for developers who draw ER and sequence diagrams often

Look elsewhere if

• Tight if you stay free: 5 files, 40 objects and ads is the cap
• Skip it if you want drag-and-drop drawing, since diagrams are built from a typed syntax
• Watch out: the free plan keeps diagrams only in the browser's local database
• Watch out: the FAQ says there is no free trial
• Watch out: prices are in euros, and students and teachers must contact Gleek for their 50% discount

Eraser

• The Free plan stops at 3 files and 3 AI credits, keeps 7 days of version history and has no private files or GitHub integration.
• AI use beyond a plan's monthly credits costs $60 per 100 credits, and only on paid plans with usage-based pricing switched on.
• API calls are billed by usage on top of a paid plan: $80 per 100 prompt-to-diagram calls and $20 per 100 code-to-diagram calls.
• The vendor's site lists no desktop or mobile app; Eraser runs in a browser, and SAML SSO needs Business Plus, sold from 10 seats.

Gleek

• Prices on the pricing page are in euros.
• The Free plan stores diagrams only in the browser's local database, shows ads and has no styling options.
• The FAQ says Gleek offers no free trial.
• Students and teachers get a 50% discount, requested by contacting Gleek.

Eraser

AI diagram generation

A prompt, an image or a file such as Terraform or a database schema is turned into an editable diagram, which can then be refined through AI chat or by hand in the visual editor.

Diagram-as-code

Architecture, sequence, flowchart, ERD and BPMN diagrams each have a text syntax, so a diagram can be read, compared and edited as code. It is included on every plan.

Canvas with Markdown notes

A file holds one infinite canvas and a note editor with Markdown support. Figures from the canvas can be embedded in the document, and files export to PDF, PNG, SVG or Markdown.

Codebase diagrams and Eraserbot

Diagrams can be generated from a connected Git repository. Eraserbot watches chosen files and comments on pull requests with updated diagrams when they change.

REST API and MCP server

The API renders a diagram from a prompt or from Eraser's diagram code. The MCP server lets Claude, Cursor or ChatGPT create, search, update and export diagrams.

Real-time collaboration and guests

Members edit together in real time and leave comments and mentions. Guests are free on every plan and can edit or comment only on files they are invited to.

Gleek

Text-based diagramming

Diagrams are written as text in Gleek's own syntax, so they can be built from the keyboard without a mouse.

Many diagram types

Flowcharts, ER diagrams in Chen or crow's foot notation, UML class, sequence, state and object diagrams, Gantt charts and user journeys.

AI chat

On paid plans, a chat creates ER, sequence, class or flowchart diagrams from a description.

Git connection

Paid plans connect to a Git repository, so diagrams are saved with the code and get version control.

Export and sharing

Paid plans export high-resolution PNG, SVG and PDF. Free exports PNG only. Diagrams are shared by link.

Eraser

• Free$0

  3 files, 3 AI credits and 7-day version history, with unlimited guests, diagram-as-code and Markdown notes.

• Business$45

  per member / month, billed annually ($60 billed monthly)

  Unlimited files, 100 AI credits a month, unlimited version history, private files, 100 custom icons, 1 Git repo and 1 data source.

• Business Plus$42

  per member / month, billed annually, minimum 10 seats

  Everything in Business, plus 250 AI credits a month, 3 Git repos and 3 data sources, SAML SSO and unlimited custom icons. Sold from 10 seats.

• EnterpriseCustom

  Unlimited AI credits, Git repos and data sources, custom hosting, SCIM, SIEM logging, a customer success manager and payment by ACH or wire.

Gleek

• Free$0

  5 diagram files, 40 objects per file, PNG export only, no AI chat, no styling changes, ads, diagrams stored in the browser.

• Premium Monthly€6.95

  per month, billed monthly

  Unlimited files and objects, PNG, SVG and PDF export, AI chat, Git connection, custom themes and priority support.

• Premium Yearly€58.40

  per year

  The same features as Premium Monthly, billed once a year.

• Premium per Activity€10.99

  per month, charged by use in the previous month

  For infrequent use: the payment pauses in a month you do not use the tool. Same features as Premium.

• Premium for Teams€6.95

  per month, for teams of 2 or more

  Premium features with licenses managed by a team owner and single invoicing.

Eraser

• Annual discount

  25% less with annual billing

  Business is $45 per member a month billed annually against $60 billed monthly, 25% cheaper. Business Plus is sold on annual billing only.

• Education

  Education discount on request

  Eraser's docs say discounts are available to education users, who request one by filling out a form. The size of the discount is not published.

• Nonprofit

  Nonprofit discount on request

  Non-profit users can request a discount through the same form linked from the pricing page FAQ and the docs. The size of the discount is not published.

Gleek

• Education

  50% off for students and teachers

  The pricing page lists a Student plan with a 50% discount for students and teachers, arranged by contacting Gleek.