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Preceden
by Preceden
What Preceden is
Preceden is a web-based timeline maker for visualizing projects, historical subjects, legal cases, research, and writing. Users can build timelines manually or generate them with its AI tool. Editing options include layers, connected events, drag and drop, zoom, themes, legends, icons, notes, and approximate dates. For planning, it also supports Gantt charts, dependencies, percent complete, milestones, bulk editing, and templates. Spreadsheet data can be imported from XLSX or CSV files, and timelines can be shared through links, HTML embeds, or presentation mode. Visibility controls include private, password-protected, and secret URL settings. Exports include PDF, image, PowerPoint, and spreadsheet formats. Timeline Maker AI can be used without an account, but editing its generated timeline requires one. Preceden says AI generation works best for well-known historical or fictional topics, can be inaccurate for obscure or recent subjects, and cannot accept a URL as its topic input. The free plan allows unlimited timelines with up to 10 events each; paid plans start at $10 a month when billed annually. There is no downloadable desktop version. The phone interface supports basic editing, while full visualization requires a tablet or larger screen. Real-time collaboration is not supported.
Who it suits
Preceden suits people organizing events into timelines, including project planners, researchers, and people documenting legal or historical subjects. Its phone interface supports basic editing, but full visualization requires a tablet or larger screen.
What it does well
- Supports timelines, Gantt charts, roadmaps, and legal chronologies.
- Can import CSV and XLSX spreadsheets.
- Offers link, embed, and presentation sharing.
- Includes private and password-protected visibility options.
- Free plan allows unlimited timelines.
What to know first
- Free timelines are limited to 10 events each.
- Real-time collaboration is not supported.
- No downloadable desktop version.
- Full visualization requires a tablet or larger screen.
Limits
The free plan allows up to 10 events per timeline and does not include spreadsheet import, collaboration, a custom logo, or a custom domain. Basic paid plans allow unlimited timelines and events but do not include collaboration, a custom logo, or a custom domain.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | free forever · Unlimited timelines · 10 events per timeline · PDF, PPTX, and other exports · no spreadsheet import, collaboration, custom logo, or custom domain | Free |
| Basic | billed annually · Unlimited events | $10 a month |
| Pro | billed annually · Unlimited events · Up to 100 collaborators per timeline | $16 a month |
| Basic (annual billing) | billed annually · Unlimited timelines and events · exports · removes Preceden branding · spreadsheet import · no collaboration, custom logo, or custom domain | $10 a month |
| Pro (annual billing) | billed annually · Unlimited timelines and events · exports · removes Preceden branding · spreadsheet import · collaboration · custom logo · custom domain | $16 a month |
| Basic (monthly billing) | billed monthly · Unlimited timelines and events · exports · removes Preceden branding · spreadsheet import · no collaboration, custom logo, or custom domain | $25 a month |
| Pro (monthly billing) | billed monthly · Unlimited timelines and events · exports · removes Preceden branding · spreadsheet import · collaboration · custom logo · custom domain | $40 a month |
As preceden.com lists them, read 8 Oct 2026. The maker's own page has the final word.
Getting started
- Visit the Preceden website.
- Use Timeline Maker AI without an account, or create an account to edit its generated timeline.
- Alternatively, create a timeline manually or import a CSV or XLSX spreadsheet.
- Choose the free plan or a paid plan based on event limits and collaboration needs.
- Share the timeline by link, embed, or presentation mode, or export it.
Verdict
Preceden covers timeline creation, project planning, imports, exports, and multiple sharing controls. The free plan is limited to 10 events per timeline, and users needing live collaboration or full phone visualization should note its limitations.
Questions
Is Preceden free?
Yes. Its Free plan costs nothing and is billed free forever. It includes unlimited timelines with up to 10 events per timeline.
How much do the paid plans cost?
Basic costs $10 a month billed annually, or $25 a month billed monthly. Pro costs $16 a month billed annually, or $40 a month billed monthly.
Which platforms can I use?
Preceden lists Android, iOS, and web. It is used through its website and has no downloadable desktop version.
Can I collaborate with others?
Real-time collaboration is not supported. Pro includes up to 100 collaborators per timeline; Basic does not include collaboration.
Can I import and export spreadsheets?
CSV and XLSX imports are supported on paid plans. The free plan includes exports but not spreadsheet import; export formats include PDF, PNG, PPTX, and spreadsheets.
What can Timeline Maker AI do?
It can generate a timeline and is free to use without a Preceden account, but an account is required to edit the generated timeline. Preceden says it works best for well-known historical or fictional topics and may be inaccurate on obscure or recent topics.
Facts from Preceden's own pages
- AI availability
- Timeline Maker AI is free to use without a Preceden account, while editing its generated timeline requires an account. · preceden.com, 8 Oct 2026
- AI limitations
- Preceden says AI generation works best for well-known historical or fictional topics, may be inaccurate on obscure or recent topics, and cannot use a URL as its topic input. · preceden.com, 8 Oct 2026
- Company location
- The site footer identifies Preceden LLC as being in Cary, NC. · preceden.com, 8 Oct 2026
- Device support
- Preceden is used through its website and has no downloadable desktop version; its phone interface supports basic content editing, while the full visualization requires a tablet or larger screen. · preceden.com, 8 Oct 2026
- Diagram types
- timelines,Gantt charts,project roadmaps,legal chronologies,comparative timelines · preceden.com, 22 Sept 2026
- Founded
- 2010 · preceden.com, 28 Sept 2026
- Founder and origin
- Preceden says founder Matt Mazur built it after experiencing the difficulty of creating project timelines while serving as an Air Force project manager. · preceden.com, 8 Oct 2026
- Free plan
- Yes · preceden.com, 22 Sept 2026
- Headquarters
- Cary, North Carolina, United States · preceden.com, 28 Sept 2026
- Import
- Spreadsheet import supports XLSX and CSV files. · preceden.com, 8 Oct 2026
- Import/export formats
- CSV,XLSX,PDF,PNG,PPTX · preceden.com, 22 Sept 2026
- Privacy controls
- Timeline visibility can be controlled with private, password-protected, or secret URL access settings. · preceden.com, 8 Oct 2026
- Project planning
- Advanced features include dependencies, percent complete, milestones, bulk editing, templates, and Gantt charts. · preceden.com, 8 Oct 2026
- Purpose
- Preceden is a web-based timeline maker for creating visual timelines about projects, history, legal cases, research, and writing. · preceden.com, 8 Oct 2026
- Real-time collaboration
- No · preceden.com, 22 Sept 2026
- Refunds
- The pricing page says customers can email within 15 days of a payment for a full refund. · preceden.com, 8 Oct 2026
- Sharing and exports
- Timelines can be shared by link, HTML embed, or presentation mode and exported as PDF, image, PowerPoint, spreadsheet, and more. · preceden.com, 8 Oct 2026
- Support
- Preceden’s Help Center offers support articles and says users can email the company for help. · preceden.com, 8 Oct 2026
- Timeline creation
- Users can generate timelines with its AI tool or create them manually. · preceden.com, 8 Oct 2026
- Visualization
- Features include layers, connected events, drag and drop, zoom, themes, legends, icons, notes, and approximate dates. · preceden.com, 8 Oct 2026
Where Preceden stands on Freedom251
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- Diagramming tools#29 of 46