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SPECIFICTION
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Diesel TMS

dieseltms.com

From $40/mo Free plan WebiOS
Visit dieseltms.com
Spec score 8.3 #10 of 32 in Trucking Software

What it is

Diesel TMS brings trucking and freight brokerage operations into one transportation management system for owner-operators, small fleets, and growing brokerages. Its tools cover load management, dispatching, quoting, and rate confirmation creation. The iOS driver app provides load assignment notifications, tracking, status updates, geofenced automatic updates, document access and scanning, and log book entries. Accounting functions include double-entry accounting with a general ledger, invoicing, payment receipt, carrier and vendor payments, and ACH file downloads. Listed connections include two-way QuickBooks Online, 123Loadboard, MyCarrierPortal, email, and factoring integrations. Zapier is available on every plan, including free, and is described as linking to over 6,000 apps. The company says its API provides no-cost create, read, update, and delete access to core data. TMS Unlimited costs nothing and includes unlimited users, loads, customers, carriers, trucks, drivers, and quotes. TMS Flex costs what you agree with the maker, billed per user per hour while logged in; TMS Pro costs $40 a month per user.

Spec sheet

Product
Diesel TMS combines trucking and freight brokerage operations in one transportation management system.Read 7 Oct 2026 · dieseltms.com
Intended users
The product is described as built for owner-operators, small fleets, and growing brokerages.Read 7 Oct 2026 · dieseltms.com
API
The company says its API provides create, read, update, and delete access to core Diesel TMS data, at no cost.Read 7 Oct 2026 · dieseltms.com
Integrations
Listed integrations include QuickBooks Online two-way integration, 123Loadboard, MyCarrierPortal, email, and factoring integrations.Read 7 Oct 2026 · dieseltms.com
Support
The free plan lists phone, email, and chat support, plus tutorials and onboarding.Read 7 Oct 2026 · dieseltms.com
Company
Diesel TMS is owned and operated by Easy Does InTech, LLC, registered in Alabama, USA.Read 7 Oct 2026 · dieseltms.com
Accounting
Listed accounting capabilities include double-entry accounting with a general ledger, invoicing, payment receipt, carrier and vendor payments, and ACH file downloads.Read 7 Oct 2026 · dieseltms.com
Automation
The Zapier integration is described as connecting Diesel TMS to over 6,000 apps and working on every plan, including free.Read 7 Oct 2026 · dieseltms.com
Customization
Customization options include a rate confirmation builder, customizable load list and interface, dark mode, logo upload, and white labeling.Read 7 Oct 2026 · dieseltms.com
Dispatching
It supports load management, dispatching, quoting, and rate confirmation creation.Read 7 Oct 2026 · dieseltms.com
Driver tools
The driver app supports load assignment notifications, driver tracking, status updates, geofenced automatic updates, document access, document scanning, and log book entries.Read 7 Oct 2026 · dieseltms.com
File upload limit
The maker's older public product page lists a 2 MB maximum file upload for Basic and 35 MB per file for paid Flex and Pro plans.Read 7 Oct 2026 · dieseltms.com
Mobile availability
The maker announced an iOS app for iPhone and iPad, available through the Apple App Store.Read 7 Oct 2026 · dieseltms.com
Permissions and portals
The product lists over 500 permission settings plus customer and carrier portals.Read 7 Oct 2026 · dieseltms.com
Reliability
The maker says it uses multiple datacenters in multiple locations for redundancy and guarantees less than five minutes of downtime per month.Read 7 Oct 2026 · dieseltms.com

Plans and prices

TMS Unlimited Free Unlimited users, loads, customers, carriers, trucks, drivers, and quotes · No credit card required · Standard features Read 7 Oct 2026 · dieseltms.com
TMS Flex Priced on request Per user, per hour; accrues only when logged in All standard features · No ads · Dedicated account representative and support · No minimum Read 7 Oct 2026 · dieseltms.com
TMS Pro $40 a month Per user, per month All standard features · No ads · Dedicated account representative and support · Fixed monthly cost Read 7 Oct 2026 · dieseltms.com

Every Diesel TMS plan and price →

Strong points and limits

Strong points

  • Free plan includes unlimited users and loads.
  • Zapier works on every plan, including free.
  • Two-way QuickBooks Online integration is listed.
  • iOS app supports geofenced automatic status updates.

Limits

  • Flex costs what you agree with the maker, billed hourly.
  • Pro costs $40 a month per user.
  • Older product page lists a 2 MB Basic upload maximum.

Who it suits

It is aimed at owner-operators, small fleets, and growing brokerages seeking dispatch, driver, accounting, and freight brokerage tools together. The iOS driver app supports drivers handling assignments, updates, documents, and log book entries.

Verdict

Diesel TMS combines dispatch, driver workflows, accounting, and integrations, with a free plan covering unlimited listed resources. Compare Flex’s logged-in hourly billing with Pro’s monthly per-user price, and note the listed Basic upload limit.

Where Specifiction places it

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