Bootstrapware Importer alternative for a million rows
Updog parses files in a worker and paints its grid on a canvas. About one million rows stay responsive, and users fix errors in a spreadsheet editor.
100% client-sideWhite-label1M rows
Updog and Bootstrapware Importer at a glance
| Dimension | Updog | Bootstrapware Importer |
|---|---|---|
| Data privacy | Files are parsed, validated, and edited in the browser. Row data never reaches Updog's servers, so there is no data processor, DPA, or residency to manage. | Files are parsed, mapped, and validated in the browser, and your app receives the rows through a callback. If you set the columns in your code, the package makes no network call. If you load the columns from Bootstrapware's dashboard, the package reports each import to Bootstrapware as row counts and timings, with no file contents. The terms state that custom DPAs are not sold. No retention period for that import data, hosting provider, or certification found. |
| White-label | Full styling through CSS variables and class overrides. No Updog logos or "powered by" on any plan, including the free one. | Eight CSS color variables cover the accent, background, text, borders, and status colors, and the widget inherits your page's font. An importer configured in the dashboard can also set an accent color, a logo, and a title. No vendor badge was found in the published package. |
| Pricing | Free up to 100,000 rows a month across all production domains, with no limit on localhost and preview domains. Team is $100 per production domain per month, or $1,000 a year, with no row limit, and your first paid domain includes a free one for staging. | Public and self-serve. The npm package runs free with the columns set in your code, with no key or account. The Production plan is $19.99 a month per workspace and adds live keys, columns managed in a dashboard and published without a redeploy, several live importers, and webhooks. Imports and seats are not metered. |
| Data mapping | Schema in code. Fuzzy column matching with a built-in synonym dictionary you can extend, or connect the AI your organization already approves through a hook, so it runs on infrastructure you control with no new AI vendor to clear. Updog keeps no mapping history. Your app owns that state and can supply saved selections on later imports. Maps incoming values to your options. Auto-detects number and date formats. Combines files by upserting on a key. | Schema in code, or in Bootstrapware's dashboard on the Production plan. Headers match against each field's key, label, and aliases by exact, word-stem, and partial comparison, and the user corrects the rest in dropdowns. No AI matching or hook for one found. No step maps incoming values to your options, so a value outside the list fails validation. Numbers read in US or European notation, and dates follow one order set for the whole importer. No mapping history is kept. |
| Data cleaning | Cells edit inline through a typed editor per column, from text, email and url through number, boolean, date and time to select, multiselect, country and currency, with clipboard, fill handle, and full undo and redo. Values pass a transform on the way in, then validation runs at three levels, built-in rules, your own checks, and asynchronous ones. Sorting, full-text search, filters on the columns you enable, and formulas. Invalid rows can block submit or come through flagged. Any view also exports in any supported format. | A preview of the first 100 rows with valid and invalid counts. Cells are not editable, so a user fixes the file and uploads it again. Validation covers seven field types, required and unique flags, and a duplicate key, with no custom validator function. Values are normalized on the way in, so currency symbols, percentages, accounting negatives, and blank markers come through clean. Only valid rows reach your app, and the invalid ones download as a CSV with their error messages. No sorting, search, filters, or undo found. |
| Scale & performance | About one million rows at around 20 columns in the browser, with a filter on every column. No fixed row cap, the browser tab's memory is the ceiling, and fewer columns reach further. Filtering and sorting run in a worker, measured at 30 to 250 milliseconds over a million rows. | Everything runs in the browser, on the page's main thread, with no worker in the published package. The limits page states no hard-coded file-size or row cap, recommends uploads of thousands of rows, and names the browser's memory and CPU as the ceiling. The product page puts huge batch jobs out of scope. |
| Integration | React component, plus a Web Component for Vue, Angular, Svelte, and vanilla JS. Renders inline in your page's DOM. Imports CSV, TSV, Excel, JSON, and XML, plus any other format through a parser you register yourself. | A React component, rendered inline in your page's DOM. No Web Component or packages for other frameworks found. Imports CSV, TSV, XLSX, and XLS, detects comma, semicolon, tab, and pipe delimiters, and takes one sheet per import through a sheet picker. |
| Languages & RTL | English by default, with every interface string overridable, so you can localize into any language. Right-to-left is first-class. It flips layout, text alignment, scrollbars, and column pinning, and carries through to export. | English only. The component's props offer no way to override interface strings. A dir prop sets right-to-left direction on the widget. |
| Accessibility | An ARIA grid with full keyboard navigation and screen-reader support. WCAG 2.2 AA is the level Updog builds to, with automated rule checks over every component and every step of the importer on each test run. Updog holds no independent audit or VPAT. | No accessibility statement found. The upload area takes keyboard focus and carries a label, the file and sheet inputs are labelled, and validation results are announced through status and alert regions. The preview is a plain HTML table with no grid semantics. |
Bootstrapware Importer exists as a free MIT-licensed npm package and as a paid hosted dashboard that stores its columns. Facts checked against Bootstrapware's public pages in September 2026.
Which one fits your team
Bootstrapware Importer may fit better if
- You only need an upload, map, and preview flow that hands valid rows to your app, with no editor for users to learn.
- You want to run the importer in production at no cost, with the columns set in your code and no key or account.
- You want to change an importer's columns in a dashboard and publish them without redeploying your app.
Updog may fit better if
- You want an importer and spreadsheet editor embedded in your own app.
- You want to match your app's design exactly, styling the editor with your own CSS through variables and class overrides.
- You want to handle large files in the browser, with nothing stored on a server.
- You want flat, public pricing with no per-import fees.
- You want to use the AI your organization already approves, with no new vendor to clear.
Questions people ask
Is Updog a drop-in replacement for Bootstrapware Importer?
Not quite. Both are client-side importers that embed in your app, and the columns are configured differently. Updog is also a full spreadsheet editor, while Bootstrapware Importer ends at a read-only preview.
How do the two handle data privacy?
Neither sends row data to a vendor. Updog has no server mode. Bootstrapware Importer makes no network call if you set the columns in your code, and reports row counts and timings to Bootstrapware if you load the columns from its dashboard.
How does Updog pricing compare?
Updog is free up to 100,000 rows a month, then $100 per production domain per month with no row limit. Bootstrapware Importer's package runs free with the columns set in your code, and its Production plan with the hosted dashboard is $19.99 a month per workspace.
Can Updog handle large files like Bootstrapware Importer?
Yes, about 1 million rows in the browser, bound by the machine's memory. Bootstrapware Importer publishes no row limit, and its limits page recommends uploads of thousands of rows.
Can users fix invalid rows inside the importer?
In Updog, yes. Users edit cells inline, and invalid rows can block submit or come through flagged. Bootstrapware Importer's preview is read-only. It passes only the valid rows to your app and offers the invalid ones as a CSV download with their error messages.
Can Updog be used to view or edit existing data, without an import?
Yes. Load existing data straight into Updog's editor to view and edit it, with a read-only mode. Bootstrapware Importer's preview belongs to the import flow, which starts with a file.
How do the two handle accessibility?
Updog's grid uses ARIA semantics with full keyboard navigation and screen-reader support, and the importer is checked against WCAG 2.2 A and AA rules on each test run. Updog holds no independent audit or VPAT. No accessibility statement was found for Bootstrapware Importer. Its upload area and inputs are labelled and keyboard-reachable, validation results are announced, and the preview is a plain HTML table with no grid semantics.
Can the interface be translated, and does right-to-left work?
Updog ships in English with every interface string overridable, so you can localize into any language, and it renders right-to-left layouts natively. Bootstrapware Importer is English only with no string overrides found, and a dir prop sets right-to-left direction on the widget.
See how Updog compares to other CSV importers
Try Updog for free
Install the package, add your columns, render the component. Free on localhost and preview domains. Every feature included.