The best internal tool builders in 2026
For an internal tool you build from scratch (an admin panel, an approval flow, an ops dashboard), BerryBell is our pick: describe it and a team of AI agents builds it with its own Postgres database, with sign-in and role-based permissions on a paid plan. If the tool sits on data you already have, Retool is the established choice for engineering teams, Softr turns existing data into portals and internal apps, and Glide builds business apps from spreadsheets. Here's how they compare.
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At a glance
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| BerryBell | Retool | Base44 | Softr | Glide | Bubble | |
|---|---|---|---|---|---|---|
| Build approach | BerryBell Multi-agent (planner + specialist agents) | Retool AI builder + classic low-code | Base44 AI generation (managed platform) | Softr AI co-builder + no-code blocks | Glide AI agent (GlideOS) or no-code (Classic) | Bubble AI generation + visual editor |
| Backend | BerryBell Built-in (Postgres; end-user auth on paid plans) | Retool Connects to yours + Retool DB | Base44 Built-in database, auth and hosting (all plans) | Softr Built-in Softr DB or Airtable/Sheets/SQL | Glide Your data source / built-in | Bubble Built-in |
| Code ownership | BerryBell Editable in-browser on all plans; GitHub sync + download on paid | Retool React code on Retool; Git sync on Enterprise | Base44 GitHub 2-way sync + ZIP download (Builder+) | Softr No (managed) | Glide No (managed) | Bubble No (data export only) |
| Hosting | BerryBell 1-click, with SSL, on all plans (berrybell.app) | Retool Built-in / self-host | Base44 Built-in (base44.app) on all plans | Softr Built-in | Glide Built-in | Bubble Built-in |
| Free tier | BerryBell 20 credits + $5 hosting to start, then 5 credits a day; badge | Retool Yes | Base44 25 message credits a month (5 a day); 5 public apps | Softr Yes (limited) | Glide Yes (limited) | Bubble Yes (limited) |
| Pricing from | BerryBell $0 free · from $25/mo Pro | Retool $0 free · from $12/mo per builder (Team) | Base44 $0 free · from $20/mo Starter | Softr $0 free · from $25/mo Basic | Glide $0 free · from $25/mo Basic | Bubble $0 free · from $32/mo Starter (web) |
| Best for | BerryBell Founders, makers, agencies wanting a full-stack app + ownership | Retool Internal tools on existing data | Base44 Internal tools on a managed stack | Softr Client portals & internal tools | Glide Business apps from spreadsheets | Bubble Complex visual apps, no code |
Pricing and features change frequently — every product here, BerryBell included, reflects our best understanding as of September 2026. Verify on each product's own site before relying on specifics; BerryBell's current plans are always on /pricing.
How we ranked these
We compared each tool on what it builds, its backend (database and sign-in), code ownership, hosting and custom domains, and price, using each product's own pricing and documentation pages. Disclosure: BerryBell makes this roundup and ranks its own product first. Each entry says what that tool does best, so you can judge the fit for yourself.
BerryBell
Our pickOur pick for internal tools built from scratch: specialist agents build the tool and its Postgres database; sign-in and role-based permissions on paid plans.
Describe an app in plain English and a team of specialised agents (code, design, database, deploy, QA, debug) builds, tests and ships a full-stack app — with a Postgres database and hosting included, code you own, and end-user auth and custom domains on paid plans.
The established choice for internal tools on your existing databases and APIs, aimed at engineering teams.
A leader for internal tools that connect to your existing databases and APIs, now with an AI-native builder that generates React apps. Best for back-office apps rather than public-facing products.
All-in-one managed platform, with a database, auth and hosting on every plan.
An all-in-one AI app builder with a built-in backend — database, auth and hosting on every plan. Strong for shipping internal-style apps quickly on a managed stack.
Client portals and internal tools on its own database or your Airtable, Sheets or SQL data.
An AI + no-code builder for client portals, internal tools and business apps, on its built-in Softr Databases or data like Airtable and Google Sheets. Great for portals; a managed platform with no code export.
Business apps built from spreadsheets and other data sources.
An AI platform for building internal business apps from a spreadsheet, a file or a prompt — in GlideOS the Glide Agent builds them through chat, and the original no-code builder continues as Glide Classic. Strong for internal/business apps rather than custom full-stack products.
Mature visual no-code builder for complex apps.
A mature no-code platform for full web and native mobile apps. It now pairs AI app generation and an in-editor AI Agent with its visual editor — powerful and flexible, though the editor takes time to learn.
Frequently asked questions
01 What is the best internal tool builder? + –
It depends where the data lives. To build a new internal tool with its own database, BerryBell builds it from a plain-English description. If the tool sits on databases and APIs you already run, Retool is the established option for engineering teams; Softr and Glide are quicker for portals and spreadsheet-based apps.
02 Can I build an internal tool with AI? + –
Yes. Describe the tool (who uses it, what data it shows and which actions it allows) and an AI app builder like BerryBell generates the app, its database and hosting. On a paid plan it also adds sign-in and role-based permissions, so only the right people can take each action.
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